• Space Calendar - May 22, 2017

    From baalke@1:2320/100 to sci.space.news on Mon May 22 16:37:30 2017
    From Newsgroup: sci.space.news

    Welcome to the Space Calendar!

    Created in 1994, this Space Calendar covers space-related activities
    and anniversaries for the upcoming year. It is also available on the
    web at:

    http://www.jpl.nasa.gov/calendar/

    The online version of the Space Calendar includes over 5,400 links to related home pages.

    This calendar is compiled and maintained by Ron Baalke. Please send any updates or corrections to ron@jpl.nasa.gov. Note that launch dates
    are subject to change at any time. Also, note that anniversary dates are listed in 5 year increments only.

    Follow me on Twitter: https://twitter.com/RonBaalke

    The following people have contributed to this month's calendar:

    o Thomas Schiller, Paulus Van Susante

    =========================
    SPACE CALENDAR
    May 22, 2017
    =========================

    * indicates changes from last month's calendar.

    May 2017
    May 22 - Cassini, Distant Flyby of Atlas, Janus & Aegaeon
    May 22 - Comet 130P/McNaught-Hughes Closest Approach To Earth (1.691 AU)
    May 22 - Comet P/2015 D6 (Lemmon-PANSTARRS) At Opposition (4.528 AU)
    May 22 - Asteroid 1069 Planckia Closest Approach To Earth (2.001 AU)
    May 22 - Asteroid 4115 Peternorton Closest Approach To Earth (2.019 AU)
    May 22 - 5th Anniversary (2012), Katol Meteorite Fall (Hit Houses in India)
    May 22 - 65th Anniversary (1952), Aerobee Launch (Monkeys Patricia & Mike)
    May 23 - Apollo Asteroid 2015 VX105 Near-Earth Flyby (0.072 AU)
    * May 23 - Apollo Asteroid 2017 JD3 Near-Earth Flyby (0.079 AU)
    * May 23 - Amor Asteroid 2017 HO49 Near-Earth Flyby (0.083 AU)
    May 23 - Aten Asteroid 5381 Sekmet Closest Approach To Earth (0.802 AU)
    May 23 - Asteroid 2521 Heidi Closest Approach To Earth (1.697 AU)
    May 23 - Asteroid 4279 De Gasparis Closest Approach To Earth (1.842 AU)
    May 23 - Asteroid 9499 Excalibur Closest Approach To Earth (1.937 AU)
    May 23 - Lucy McFadden's 65th Birthday (1952)
    May 24 - Cassini, Distant Flyby of Titan
    * May 24 - Apollo Asteroid 2017 KH3 Near-Earth Flyby (0.048 AU)
    May 24 - Plutino 38628 Huya At Opposition (27.595 AU)
    May 24 - Plutino 2006 HJ123 At Opposition (33.410 AU)
    May 24 - 55th Anniversary (1962), Aurora 7 Launch (Scott Carpenter)
    May 25 - Towel Day - Annual Tribute to Douglas Adams
    * May 25 - EKS N2/ Tundra 12L Soyuz-2.1b/Fregat-M Launch
    * May 25 - Cartosat 2E/Max Valier Sat/Venta 1/Blue Diamond/Green Diamond/Red Diamond/COMPASS 2/InflateSail/
    LituanicaSAT 2/URSA MAIOR/NUDTSat/Pegasus/UCLSat/VZLUsat 1 PSLV Launch
    May 25 - Comet 65P/Gunn At Opposition (1.986 AU)
    May 25 - Comet C/2016 B1 (NEOWISE) Closest Approach To Earth (2.895 AU)
    May 25 - Asteroid 376 Geometria Closest Approach To Earth (0.902 AU)
    May 25 - Asteroid 2074 Shoemaker Closest Approach To Earth (1.054 AU)
    May 25 - Asteroid 15907 Robot Closest Approach To Earth (1.097 AU)
    May 25 - Asteroid 9007 James Bond Closest Approach To Earth (1.747 AU)
    May 26 - Comet 73P-AI/Schwassmann-Wachmann Near-Earth Flyby (0.023 AU)
    May 26 - Comet 148P/Anderson-LINEAR At Opposition (3.799 AU)
    May 26 - Asteroid 3017 Petrovic Occults HIP 68705 (6.3 Magnitude Star)
    * May 26 - Apollo Asteroid 2017 KC3 Near-Earth Flyby (0.098 AU)
    May 26 - Asteroid 163693 Atira Closest Approach To Earth (0.356 AU)
    May 26 - Asteroid 38237 Roche Closest Approach To Earth (0.996 AU)
    May 26 - Asteroid 2933 Amber Closest Approach To Earth (1.624 AU)
    May 26 - 85th Anniversary (1932), Kuznetzovo Meteorite Fall in Russia
    May 26 - Abraham de Moivre's 150th Birthday (1867)
    * May 27 - Apollo Asteroid 2017 HP49 Near-Earth Flyby (0.063 AU)
    May 27 - Aten Asteroid 2016 GK135 Near-Earth Flyby (0.074 AU)
    May 27 - Apollo Asteroid 6063 Jason Near-Earth Flyby (0.099 AU)
    May 27 - Asteroid 12413 Johnnyweir Closest Approach To Earth (1.356 AU)
    May 28 - Cassini, Distant Flyby of Pandora, Mimas, Aegaeon & Prometheus
    May 28 - Moon Occults Asteroid 433 Eros
    May 28 - Comet 150P/LONEOS Closest Approach To Earth (2.156 AU)
    May 28 - Comet 194P/LINEAR At Opposition (2.954 AU)
    May 28 - Comet 110P/Hartley At Opposition (3.479 AU)
    May 28 - Asteroid 11548 Jerrylewis Closest Approach To Earth (1.652 AU)
    May 28 - Ruby Payne-Scott's 105th Birthday (1912)
    May 29 - John F. Kennedy's 100th Birthday (1917)
    May 29 - Comet C/2015 V2 (Johnson) At Opposition (0.821 AU)
    May 29 - Apollo Asteroid 2017 CS Near-Earth Flyby (0.020 AU)
    * May 29 - Amor Asteroid 2017 JU1 Near-Earth Flyby (0.052 AU)
    May 29 - Apollo Asteroid 481532 (2007 LE) Near-Earth Flyby (0.082 AU)
    May 29 - Asteroid 3066 McFadden Closest Approach To Earth (1.691 AU)
    May 29 - Kuiper Belt Object 2007 JH43 At Opposition (39.552 AU)
    May 29 - Johannes Winkler's 120th Birthday (1897)
    May 30 - Comet 65P/Gunn Closest Approach To Earth (1.982 AU)
    May 30 - Comet 207P/NEAT At Opposition (2.686 AU)
    May 30 - Comet 137P/Shoemaker-Levy At Opposition (3.529 AU)
    May 30 - Asteroid 8249 Gershwin Closest Approach To Earth (1.132 AU)
    May 30 - Asteroid 2004 Lexell Closest Approach To Earth (1.332 AU)
    May 30 - Asteroid 4758 Hermitage Closest Approach To Earth (2.244 AU)
    May 30 - Asteroid 4513 Louvre Closest Approach To Earth (2.252 AU)
    May 30 - Asteroid 886 Washingtonia Closest Approach To Earth (2.384 AU)
    May 31 - Michibiki 2 H-2A Launch
    May 31 - Moon Occults Regulus
    May 31 - Comet 216P/LINEAR At Opposition (2.325 AU)
    May 31 - Comet C/2015 TQ209 (LINEAR) At Opposition (2.749 AU)
    * May 31 - Comet C/2017 E3 (PANSTARRS) Perihelion (5.914 AU)
    * May 31 - Comet C/2016 E1 (PANSTARRS) Perihelion (8.177 AU)
    May 31 - Atira Asteroid 2013 JX28 Closest Approach To Earth (1.145 AU)
    May 31 - Asteroid 4487 Pocahontas Closest Approach To Earth (2.098 AU)
    May 31 - Martin Schwarzschild's 105th Birthday (1912)
    May 31 - Charles Abbot's 145th Birthday (1872)

    June 2017
    Jun ?? - Shijian 18 (SJ-18) CZ-5 Launch
    Jun ?? - Blagovest 1 Proton-M Briz-M Launch
    Jun ?? - Intelsat 35e Falcon 9 Launch
    * Jun ?? - Hard X-Ray Modulation Telescope (HXMT)/Zhuhai-1 CZ-4B Launch
    * Jun ?? - Cartosat 2E PSLV Launch
    * Jun 01 - CRS-11/NICER/CREAM Falcon 9 Launch (International Space Station)
    Jun 01 - QZS-2 H-2A Launch
    * Jun 01 - ViaSat 2/Eutelsat 172B Ariane 5 Launch
    Jun 01 - Moon Occults Asteroid 16 Psyche
    Jun 01 - Comet 71P/Clark At Opposition (0.598 AU)
    Jun 01 - Comet P/2009 Q4 (Boattini) At Opposition (3.648 AU)
    Jun 01 - Apollo Asteroid 418094 (2007 WV4) Near-Earth Flyby (0.020 AU)
    * Jun 01 - Amor Asteroid 3908 Nyx Closest Approach To Earth (1.478 AU)
    Jun 01 - Asteroid 8088 Australia Closest Approach To Earth (1.483 AU)
    Jun 01 - Apollo Asteroid 2101 Adonis Closest Approach To Earth (1.665 AU)
    Jun 01 - 15th Anniversary (2002), 1st National Light Pollution Law (Czech Republic)
    Jun 01 - Frank Whittle's 110th Birthday (1907)
    * Jun 02 - Soyuz MS-3 Return to Earth (International Space Station)
    Jun 02 - Comet C/2016 S1 (PANSTARRS) Closest Approach To Earth (2.218 AU)
    Jun 02 - Asteroid 13188 Okinawa Closest Approach To Earth (1.060 AU)
    Jun 02 - Asteroid 3709 Polypoites Closest Approach To Earth (4.601 AU)
    Jun 02 - Kuiper Belt Object 278361 (2007 JJ43) At Opposition (40.059 AU)
    Jun 02 - Clair Patterson's 95th Birthday (1922)
    Jun 03 - Venus At Its Greatest Western Elongation (46 Degrees)
    Jun 03 - Comet 73P-W/Schwassmann-Wachmann Perihelion (0.965 AU)
    Jun 03 - Comet 234P/LINEAR At Opposition (2.362 AU)
    Jun 03 - Comet C/2015 T4 (PANSTARRS) At Opposition (3.277 AU)
    Jun 03 - Asteroid 8844 (1990 QR2) Occults HIP 95408 (6.0 Magnitude Star)
    * Jun 03 - Apollo Asteroid 2017 KJ3 Near-Earth Flyby (0.028 AU)
    * Jun 03 - Amor Asteroid 2017 JL3 Near-Earth Flyby (0.081 AU)
    Jun 03 - Asteroid 293934 MPIA Closest Approach To Earth (1.760 AU)
    Jun 04 - Cassini, Distant Flyby of Pan & Epimetheus
    Jun 04 - Comet 172P/Yeung Closest Approach To Earth (2.355 AU)
    * Jun 04 - Apollo Asteroid 1685 Toro Closest Approach To Earth (1.355 AU)
    Jun 04 - Asteroid 231307 Peterfalk Closest Approach To Earth (1.981 AU)
    Jun 04 - Asteroid 4559 Strauss Closest Approach To Earth (2.127 AU)
    Jun 04 - 15th Anniversary (2002), Mike Brown, Chad Trujillo's Discovery of 50000 Quaoar
    * Jun 05 - GSAT-19E LVM3 Launch
    Jun 05 - Comet C/2015 V2 (Johnson) Closest Approach To Earth (0.811 AU)
    Jun 05 - Comet 172P/Yeung At Opposition (2.355 AU)
    Jun 05 - Comet 169P/NEAT Closest Approach To Earth (2.552 AU)
    Jun 05 - Asteroid 4150 Starr Closest Approach To Earth (1.057 AU)
    Jun 05 - Asteroid 1941 Wild Closest Approach To Earth (3.134 AU)
    Jun 05 - Jupiter Trojan Asteroid 5254 Ulysses Closest Approach To Earth (4.829 AU)
    Jun 05 - 10th Anniversary (2007), MESSENGER, 2nd Venus Flyby
    Jun 05 - 15th Anniversary (2002), STS-111 Launch (Space Shuttle Endeavour, International Space Station)
    Jun 05 - John Bolton's 95th Birthday (1922)
    Jun 06 - Comet C/2016 A8 (LINEAR) At Opposition (2.718 AU)
    Jun 06 - Comet P/1996 R2 (Lagerkvist) At Opposition (2.973 AU)
    Jun 06 - Apollo Asteroid 2012 HN13 Near-Earth Flyby (0.073 AU)
    Jun 06 - Asteroid 13070 Seanconnery Closest Approach To Earth (1.254 AU)
    Jun 06 - Asteroid 1886 Lowell Closest Approach To Earth (1.315 AU)
    Jun 06 - Asteroid 1756 Giacobini Closest Approach To Earth (1.938 AU)
    Jun 06 - Asteroid 2046 Leningrad Closest Approach To Earth (2.217 AU)
    Jun 06 - David Scott's 85th Birthday (1932)
    Jun 06 - Ralph Baldwin's 105th Birthday (1912)
    Jun 07 - Comet 75D/Kohoutek At Opposition (4.222 AU)
    Jun 07 - Asteroid 7032 Hitchcock Closest Approach To Earth (1.476 AU)
    Jun 07 - Asteroid 7291 Hyakutake Closest Approach To Earth (2.531 AU)
    Jun 07 - Kuiper Belt Object 2010 KZ39 At Opposition (45.079 AU)
    Jun 07 - George de Bothezat's 135th Birthday (1882)
    Jun 07 - Charles Barkla's 140th Birthday (1877)
    Jun 08 - World Oceans Day
    Jun 08 - Comet 73P-BS/Schwassmann-Wachmann Near-Earth Flyby (0.056 AU)
    Jun 08 - Comet 121P/Shoemaker-Holt At Opposition (4.267 AU)
    Jun 08 - Apollo Asteroid 2011 PU1 Near-Earth Flyby (0.061 AU)
    Jun 08 - Apollo Asteroid 2063 Bacchus Closest Approach To Earth (1.417 AU)
    Jun 08 - Asteroid 82332 Las Vegas Closest Approach To Earth (1.735 AU)
    Jun 08 - Asteroid 9012 Benner Closest Approach To Earth (2.205 AU)
    Jun 08 - 10th Anniversary (2007), STS-117 Launch (Space Shuttle Atlantis, International Space Station)
    Jun 08 - Bruce McCandless' 80th Birthday (1937)
    Jun 08 - Alfred Rordame's 155th Birthday (1862)
    Jun 09 - Comet 138P/Shoemaker-Levy At Opposition (3.698 AU)
    Jun 09 - Asteroid 5203 Pavarotti Closest Approach To Earth (0.935 AU)
    Jun 09 - Asteroid 4766 Malin Closest Approach To Earth (1.916 AU)
    Jun 09 - Neptune Trojan 2013 KY18 At Opposition (29.186 AU)
    Jun 09 - 65th Anniversary (1952), Abee Meteorite Fall in Canada
    Jun 09 - Johann Gottfied Galle's 205th Birthday (1812)
    Jun 10 - Cassini, Distant Flyby of Pan & Janus
    Jun 10 - Comet P/2011 A2 (Scotti) Closest Approach To Earth (2.229 AU)
    Jun 10 - Comet 47P/Ashbrook-Jackson Perihelion (2.818 AU)
    Jun 10 - Comet 268P/Bernardi At Opposition (4.110 AU)
    * Jun 10 - Amor Asteroid 2017 HV4 Near-Earth Flyby (0.050 AU)
    Jun 10 - Asteroid 7462 Grenoble Closest Approach To Earth (1.500 AU)
    Jun 10 - Asteroid 5790 Nagasaki Closest Approach To Earth (1.529 AU)
    Jun 10 - Asteroid 6373 Stern Closest Approach To Earth (1.638 AU)
    Jun 10 - Asteroid 44016 Jimmypage Closest Approach To Earth (2.048 AU)
    Jun 10 - Asteroid 115561 Frankherbert Closest Approach To Earth (2.103 AU)
    Jun 10 - Asteroid 1578 Kirkwood Closest Approach To Earth (3.845 AU)
    Jun 10 - Kuiper Belt Object 174567 Varda At Opposition (45.891 AU)
    Jun 10 - Eugene Parker's 90th Birthday (1927)
    Jun 11 - Comet 71P/Clark Closest Approach To Earth (0.590 AU)
    Jun 11 - Comet 233P/La Sagra At Opposition (3.058 AU)
    Jun 11 - Comet 200P/Larsen At Opposition (3.891 AU)
    Jun 11 - Asteroid 2830 Greenwich Closest Approach To Earth (1.295 AU)
    Jun 11 - Asteroid 1772 Gagarin Closest Approach To Earth (1.444 AU)
    Jun 11 - Asteroid 4305 Clapton Closest Approach To Earth (1.971 AU)
    Jun 11 - Asteroid 2127 Tanya Closest Approach To Earth (2.117 AU)
    Jun 11 - Asteroid 1006 Lagrangea Closest Approach To Earth (2.554 AU)
    Jun 11 - Charles Fabry's 150th Birthday (1867)
    Jun 12 - 50th Anniversary (1967), Venera 4 Launch (Soviet Venus Lander)
    Jun 12 - Comet C/2015 V2 (Johnson) Perihelion (1.637 AU)
    Jun 12 - Comet 289P/Blanpain At Opposition (4.106 AU)
    Jun 12 - Asteroid 1674 Groeneveld Occults HIP 42516 (6.4 Magnitude Star)
    * Jun 12 - Apollo Asteroid 2017 KF3 Near-Earth Flyby (0.033 AU)
    Jun 12 - Amor Asteroid 1980 Tezcatlipoca Closest Approach To Earth (0.727 AU)
    Jun 12 - Asteroid 397 Vienna Closest Approach To Earth (1.739 AU)
    Jun 12 - Jupiter Trojan Asteroid 1143 Odysseus Closest Approach To Earth (4.680 AU)
    Jun 12 - Paul Guldin's 440th Birthday (1577)
    Jun 13 - Comet 73P-AI/Schwassmann-Wachmann Perihelion (0.964 AU)
    Jun 13 - Comet P/2017 G2 (PANSTARRS) Perihelion (2.846 AU)
    Jun 13 - Comet P/1999 XN120 (Catalina) Perihelion (3.297 AU)
    Jun 13 - Comet C/2015 O1 (PANSTARRS) At Opposition (3.552 AU)
    Jun 13 - Comet 64P/Swift-Gehrels At Opposition (3.589 AU)
    Jun 13 - Apollo Asteroid 2017 FR2 Near-Earth Flyby (0.078 AU)
    Jun 13 - Asteroid 3355 Onizuka Closest Approach To Earth (1.320 AU)
    Jun 13 - Asteroid 51823 Rickhusband Closest Approach To Earth (2.645 AU)
    Jun 13 - Asteroid 1268 Libya Closest Approach To Earth (3.313 AU)
    Jun 14 - 50th Anniversary (1967), Mariner 5 Launch (Venus Flyby Mission)
    Jun 14 - Progress MS-6 Soyuz-2.1a Launch (International Space Station 67P)
    Jun 14 - Asteroid 5066 Garradd Closest Approach To Earth (0.622 AU)
    Jun 14 - Asteroid 3834 Zappafrank Closest Approach To Earth (1.156 AU)
    Jun 14 - Asteroid 11334 Rio de Janeiro Closest Approach To Earth (1.359 AU)
    Jun 14 - Asteroid 6546 Kaye Closest Approach To Earth (2.105 AU)
    * Jun 15 - BulgariaSat 1 Falcon 9 Launch
    Jun 15 - Saturn At Opposition
    Jun 15 - Comet P/2001 R6 (LINEAR-Skiff) At Opposition (2.890 AU)
    Jun 15 - Comet P/1996 R2 (Lagerkvist) Closest Approach To Earth (2.961 AU)
    Jun 15 - Asteroid 22903 Georgeclooney Closest Approach To Earth (1.349 AU)
    Jun 15 - Asteroid 2952 Lilliputia Closest Approach To Earth (1.581 AU)
    Jun 15 - Asteroid 1691 Oort Closest Approach To Earth (2.574 AU)
    Jun 15 - 265th Anniversary (1752), Ben Franklin's Kite-Flying Lightning Experiment
    Jun 16 - Moon Occults Neptune
    Jun 16 - Comet 150P/LONEOS At Opposition (2.204 AU)
    Jun 16 - Comet P/2016 J3 At Opposition (3.464 AU)
    Jun 16 - Apollo Asteroid 2010 VB1 Near-Earth Flyby (0.026 AU)
    Jun 16 - Asteroid 1322 Coppernicus Closest Approach To Earth (0.863 AU)
    Jun 16 - Asteroid 3949 Mach Closest Approach To Earth (1.168 AU)
    Jun 16 - Asteroid 3651 Friedman Closest Approach To Earth (1.218 AU)
    Jun 16 - Amor Asteroid 9950 ESA Closest Approach To Earth (1.413 AU)
    Jun 16 - Asteroid 16761 Hertz Closest Approach To Earth (1.735 AU)
    Jun 16 - Asteroid 12757 Yangtze Closest Approach To Earth (1.807 AU)
    Jun 16 - Plutino 28978 Ixion At Opposition (38.699 AU)
    Jun 17 - Cassini, Distant Flyby of Prometheus, Atlas & Daphnis
    Jun 17 - Asteroid 14967 Madrid Closest Approach To Earth (1.588 AU)
    Jun 17 - Asteroid 2925 Beatty Closest Approach To Earth (1.645 AU)
    Jun 17 - Asteroid 10867 Lima Closest Approach To Earth (1.704 AU)
    Jun 17 - Hermann Goldschmidt's 215th Birthday (1802)
    Jun 18 - Comet 73P-BS/Schwassmann-Wachmann Perihelion (0.963 AU)
    Jun 18 - Comet 78P/Gehrels At Opposition (3.413 AU)
    Jun 18 - Apollo Asteroid 471984 (2013 UE3) Near-Earth Flyby (0.049 AU)
    Jun 18 - Asteroid 10463 Bannister Closest Approach To Earth (2.604 AU)
    Jun 19 - Comet 185P/Petriew At Opposition (1.725 AU)
    Jun 19 - Comet 90P/Gehrels Perihelion (2.975 AU)
    Jun 19 - Comet P/2005 R1 (NEAT) At Opposition (3.183 AU)
    Jun 19 - Asteroid 8564 Anomalocaris Closest Approach To Earth (2.152 AU)
    Jun 19 - Asteroid 8084 Dallas Closest Approach To Earth (2.285 AU)
    Jun 19 - Centaur Object 5145 Pholus At Opposition (26.390 AU)
    Jun 20 - Comet 223P/Skiff At Opposition (3.337 AU)
    Jun 20 - Comet P/2009 SK280 (Spacewatch-Hill) At Opposition (3.773 AU)
    Jun 20 - Comet P/2010 U2 (Hill) At Opposition (3.968 AU)
    Jun 20 - Apollo Asteroid 2015 YC1 Near-Earth Flyby (0.084 AU)
    Jun 20 - Asteroid 477 Italia Closest Approach To Earth (1.191 AU)
    Jun 20 - Aten Asteroid 2013 ND15 (Venus Trojan) Closest Approach To Earth (1.200 AU)
    Jun 20 - Bill Bradfield's 90th Birthday (1927)
    Jun 21 - Summer Solstice, 04:24 UT
    Jun 21 - Comet C/2016 B1 (NEOWISE) At Opposition (2.971 AU)
    Jun 21 - Asteroid 165347 Philplait Closest Approach To Earth (1.490 AU)
    Jun 21 - Asteroid 3062 Wren Closest Approach To Earth (2.134 AU)
    Jun 21 - Kuiper Belt Object 50000 Quaoar At Opposition (41.915 AU)
    Jun 22 - Moon Occults Aldebaran
    Jun 22 - Comet 227P/Catalina-LINEAR Perihelion (1.788 AU)
    Jun 22 - Centaur Object 10199 Chariklo Occults 2UCAC 18533636 (14.6 Magnitude
    Star)
    Jun 22 - Apollo Asteroid 2010 VZ11 Near-Earth Flyby (0.082 AU)
    Jun 22 - Aten Asteroid 2014 OL339 Closest Approach To Earth (0.282 AU)
    Jun 22 - Asteroid 10389 Robmanning Closest Approach To Earth (1.202 AU)
    Jun 22 - Apollo Asteroid 24761 Ahau Closest Approach To Earth (1.455 AU)
    Jun 22 - Asteroid 78905 Seanokeefe Closest Approach To Earth (1.846 AU)
    Jun 22 - Asteroid 4969 Lawrence Closest Approach To Earth (2.846 AU)
    Jun 22 - Asteroid 8373 Stephengould Closest Approach To Earth (3.064 AU)
    Jun 22 - Ewen Whitaker's 95th Birthday (1922)
    Jun 23 - Cassini, Distant Flyby of Epimetheus, Daphnis & Pandora
    Jun 23 - Comet P/2009 SK280 (Spacewatch-Hill) Closest Approach To Earth (3.771 AU)
    Jun 23 - Asteroid 6459 Hidesan Occults HIP 91117 (3.8 Magnitude Star)
    Jun 23 - Apollo Asteroid 2102 Tantalus Closest Approach To Earth (0.332 AU)
    Jun 23 - Asteroid 7086 Bopp Closest Approach To Earth (1.089 AU)
    Jun 23 - Asteroid 9769 Nautilus Closest Approach To Earth (1.232 AU)
    Jun 23 - Asteroid 878 Mildred Closest Approach To Earth (1.315 AU)
    * Jun 24 - Comet 96P/Machholz At Opposition (1.675 AU)
    Jun 24 - Aten Asteroid 441987 (2010 NY65) Near-Earth Flyby (0.020 AU)
    Jun 24 - Asteroid 3656 Hemingway Closest Approach To Earth (0.891 AU)
    Jun 24 - Asteroid 8209 Toscanelli Closest Approach To Earth (1.174 AU)
    Jun 24 - Apollo Asteroid 4257 Ubasti Closest Approach To Earth (1.759 AU)
    Jun 24 - Asteroid 5703 Hevelius Closest Approach To Earth (1.908 AU)
    Jun 24 - Asteroid 588 Achilles (Jupiter Trojan) Closest Approach To Earth (4.964 AU)
    Jun 24 - Martin Perl's 90th Birthday (1927)
    Jun 25 - Cassini, Distant Flyby of Titan
    Jun 25 - Comet 73P-Q/Schwassmann-Wachmann Perihelion (0.963 AU)
    Jun 25 - Comet 243P/NEAT At Opposition (2.484 AU)
    Jun 25 - Comet P/2000 S1 (Skiff) Perihelion (2.536 AU)
    Jun 25 - Comet 131P/Mueller At Opposition (2.893 AU)
    Jun 25 - Asteroid 50240 Cortina Closest Approach To Earth (1.647 AU)
    Jun 25 - 20th Anniversary (1997), Galileo, Callisto 9 Flyby
    Jun 25 - 25th Anniversary (1992), STS-50 Launch (Space Shuttle Columbia, Spacelab)
    Jun 26 - Comet P/2011 A2 (Scotti) At Opposition (2.263 AU)
    Jun 26 - Apollo Asteroid 2005 LW3 Near-Earth Flyby (0.084 AU)
    Jun 26 - Apollo Asteroid 10563 Izhdubar Closest Approach To Earth (0.690 AU)
    Jun 26 - Aten Asteroid 398188 Agni Closest Approach To Earth (0.894 AU)
    Jun 26 - Asteroid 6 Hebe Closest Approach To Earth (1.539 AU)
    Jun 26 - Asteroid 1539 Borrelly Closest Approach To Earth (2.375 AU)
    Jun 26 - Brian Roman's 55th Bithday (1962)
    Jun 27 - Comet 335P/Gibbs At Opposition (3.407 AU)
    Jun 27 - Comet 342P/SOHO At Opposition (3.408 AU)
    Jun 27 - Comet C/2015 O1 (PANSTARRS) Closest Approach To Earth (3.517 AU)
    Jun 27 - Asteroid 3356 Resnik Closest Approach To Earth (0.930 AU)
    Jun 27 - Asteroid 5961 Watt Closest Approach To Earth (1.486 AU)
    Jun 27 - Asteroid 2875 Lagerkvist Closest Approach To Earth (1.950 AU)
    Jun 27 - 15th Anniversary (1997), NEAR, Asteroid Mathilde Flyby
    Jun 27 - 35th Anniversary (1982), STS-4 launch (Space Shuttle Columbia, DOD)
    Jun 27 - Alexis Bouvard's 250th Birthday (1767)
    Jun 28 - Inmarsat S-Band/Hellas-Sat 3/GSAT 17/EuropaSat Ariane 5 Launch
    Jun 28 - Mercury Passes 0.8 Degrees From Mars
    Jun 28 - Moon Occults Regulus
    Jun 28 - Comet 129P/Shoemaker-Levy Closest Approach To Earth (3.544 AU)
    Jun 28 - Asteroid 3 Juno Occults 2UCAC 30236948 (12.8 Magnitude Star)
    Jun 28 - Centaur Object 10370 Hylonome At Opposition (22.688 AU)
    * Jun 29 - Iridium Next 11-20 Falcon 9 Launch
    Jun 29 - Moon Occults Asteroid 16 Psyche
    Jun 29 - Comet 336P/McNaught Closest Approach To Earth (1.951 AU)
    Jun 29 - Asteroid 990 Yerkes Closest Approach To Earth (1.583 AU)
    Jun 29 - Asteroid 2244 Tesla Closest Approach To Earth (2.071 AU)
    Jun 30 - Asteroid Day
    Jun 30 - Chinasat 9A CZ-3B/E Launch (China)
    Jun 30 - Cassini, Distant Flyby of Pan, Daphnis, Prometheus & Janus
    Jun 30 - Comet 73P-Q/Schwassmann-Wachmann Closest Approach To Earth (0.110 AU)
    Jun 30 - Comet 71P/Clark Perihelion (1.586 AU)
    Jun 30 - Comet P/2001 R6 (LINEAR-Skiff) Closest Approach To Earth (2.859 AU)
    Jun 30 - Comet 129P/Shoemaker-Levy At Opposition (3.545 AU)
    Jun 30 - Atira Asteroid 2007 EB26 Closest Approach To Earth (0.893 AU)
    Jun 30 - Asteroid 39882 Edgarmitchell Closest Approach To Earth (1.383 AU)
    Jun 30 - Asteroid 4783 Wasson Closest Approach To Earth (2.055 AU)
    Jun 30 - Asteroid 16529 Dangoldin Closest Approach To Earth (2.140 AU)
    Jun 30 - Neptune Trojan 2008 LC18 At Opposition (31.442 AU)
    Jun 30 - 45th Anniversary (1972), 1st Leap Second
    Jun 30 - Robert Ballard's 75th Birthday (1942)

    July 2017
    Jul ?? - Amazonas 5 Proton-M/Briz-M
    * Jul ?? - Koreasat 5A (Mugungwha 5A) Falcon 9 Launch
    * Jul ?? - Echostar 105/SES-11 Falcon 9 Launch
    * Jul ?? - Echostar 21 Proton-M/Briz-M P4 Launch
    Jul ?? - 215th Anniversary (1802), William Wollaston's Discovery of Palladium * Jul 01 - Comet 2P/Encke Closest Approach To Earth (1.135 AU)
    Jul 01 - Comet 114P/Wiseman-Skiff At Opposition (4.263 AU)
    Jul 01 - Asteroid 3769 Arthurmiller Closest Approach To Earth (1.508 AU)
    Jul 01 - Asteroid 13681 Monty Python Closest Approach To Earth (1.807 AU)
    Jul 01 - Apollo Asteroid 306367 Nut Closest Approach To Earth (2.456 AU)
    Jul 01 - Centaur Object 55576 Amycus At Opposition (19.290 AU)
    Jul 01 - 20th Anniversary (1997), STS-94 Launch (Space Shuttle Columbia, Spacelab)
    Jul 01 - Matthew Holman's 50th Birthday (1967)
    Jul 01 - Kennedy Space Center's 55th Birthday (1962)
    Jul 01 - Louis Bleriot's 145th Birthday (1872)
    Jul 01 - 170th Anniversary (1847), Karl Hencke's Discovery of Asteroid 6 Hebe
    Jul 02 - Comet 81P/Wild Closest Approach To Earth (2.290 AU)
    Jul 02 - Comet 111P/Helin-Roman-Crockett Closest Approach To Earth (3.553 AU)
    Jul 02 - Comet 111P/Helin-Roman-Crockett At Opposition (3.553 AU)
    Jul 02 - Comet 76P/West-Kohoutek-Ikemura At Opposition (4.024 AU)
    Jul 02 - Apollo Asteroid 4034 Vishnu Closest Approach To Earth (1.584 AU)
    Jul 02 - Asteroid 73769 Delphi Closest Approach To Earth (2.648 AU)
    Jul 02 - Kuiper Belt Object 307261 (2002 MS4) At Opposition (45.759 AU)
    Jul 02 - Lutz Schmadel's 75th Birthday (1942)
    Jul 03 - Earth At Aphelion (1.017 AU From Sun)
    Jul 03 - Comet 332P-F/Ikeya-Murakami Closest Approach To Earth (2.710 AU)
    Jul 03 - Comet P/2006 F1 (Kowalski) At Opposition (3.174 AU)
    Jul 03 - Asteroid 5382 McKay Closest Approach To Earth (1.681 AU)
    Jul 03 - Asteroid 4523 MIT Closest Approach To Earth (1.834 AU)
    Jul 03 - Asteroid 767 Bondia Closest Approach To Earth (1.842 AU)
    Jul 03 - Asteroid 6592 Goya Closest Approach To Earth (2.049 AU)
    Jul 03 - Asteroid 6677 Renoir Closest Approach To Earth (2.121 AU)
    Jul 03 - Asteroid 582 Olympia Closest Approach To Earth (2.301 AU)
    Jul 03 - Centaur Object 10199 Chariklo At Opposition (14.651 AU)
    Jul 03 - 25th Anniversary (1992), SAMPEX Launch
    Jul 04 - Asteroid 1279 Uganda Closest Approach To Earth (0.865 AU)
    Jul 04 - Asteroid 9617 Grahamchapman Closest Approach To Earth (1.458 AU)
    Jul 04 - Asteroid 3106 Morabito Closest Approach To Earth (2.571 AU)
    Jul 04 - 20th Anniversary (1997), Mars Pathfinder, Mars Landing
    Jul 05 - Comet 332P-I/Ikeya-Murakami Closest Approach To Earth (2.681 AU)
    Jul 05 - Comet 332P-B/Ikeya-Murakami Closest Approach To Earth (2.682 AU)
    Jul 05 - Comet 332P-D/Ikeya-Murakami Closest Approach To Earth (2.683 AU)
    Jul 05 - Comet 332P-H/Ikeya-Murakami Closest Approach To Earth (2.683 AU)
    Jul 05 - Comet 332P-A/Ikeya-Murakami Closest Approach To Earth (2.684 AU)
    Jul 05 - Comet 332P-E/Ikeya-Murakami Closest Approach To Earth (2.685 AU)
    Jul 05 - Comet 332P-C/Ikeya-Murakami Closest Approach To Earth (2.686 AU)
    Jul 05 - Comet P/2006 F1 (Kowalski) Closest Approach To Earth (3.174 AU)
    Jul 05 - Comet 131P/Mueller Closest Approach To Earth (2.877 AU)
    Jul 05 - Apollo Asteroid 2017 BM31 Near-Earth Flyby (0.072 AU)
    Jul 05 - Asteroid 4536 Drewpinsky Closest Approach To Earth (1.183 AU)
    Jul 05 - Asteroid 1221 Amor Closest Approach To Earth (1.227 AU)
    Jul 05 - Binary Apollo Asteroid 69230 Hermes Closest Approach To Earth (1.529
    AU)
    Jul 05 - Asteroid 14702 Benclark Closest Approach To earth (1.721 AU)
    Jul 05 - Asteroid 11356 Chuckjones Closest Approach To Earth (2.178 AU)
    Jul 05 - Andrew Douglass' 150th Birthday (1867)
    Jul 05 - 330th Anniversary (1687), Isaac Newton's Principia Published
    Jul 06 - Cassini, Distant Flyby of Daphnis & Pan
    Jul 06 - Comet 41P/Tuttle-Giacobini-Kresak At Opposition (0.513 AU)
    Jul 06 - Comet 332P/Ikeya-Murakami Closest Approach To Earth (2.695 AU)
    Jul 06 - Comet 180P/NEAT Closest Approach To Earth (2.983 AU)
    Jul 06 - Comet 46P/Wirtanen At Opposition (3.269 AU)
    Jul 06 - Asteroid 5676 Voltaire Closest Approach To Earth (1.353 AU)
    Jul 06 - Asteroid 11341 Babbage Closest Approach To Earth (1.494 AU)
    Jul 06 - Asteroid 7495 Feynman Closest Approach To Earth (2.167 AU)
    Jul 06 - Kuiper Belt Object 2014 PN70 At Opposition (42.980 AU)
    Jul 06 - 10th Anniversary (2007), Cali Meteorite Fall (Hit Houses in Columbia)
    Jul 07 - Comet 253P/PANSTARRS At Opposition (1.930 AU)
    Jul 07 - Comet 243P/NEAT Closest Approach To Earth (2.463 AU)
    Jul 07 - Asteroid 336698 Melbourne Closest Approach To Earth (2.069 AU)
    Jul 07 - Asteroid 10552 Stockholm Closest Approach To Earth (2.719 AU)
    Jul 07 - Kuiper Belt Object 2014 MU69 At Opposition (42.275 AU)
    Jul 07 - Robert Heinlein's 110th Birthday (1907)
    Jul 08 - Comet 213P/Van Ness At Opposition (1.064 AU)
    Jul 08 - Comet 213P-B/Van Ness At Opposition (1.065 AU)
    Jul 08 - Comet 336P/McNaught At Opposition (1.962 AU)
    Jul 08 - Comet 332P-G/Ikeya-Murakami Closest Approach To Earth (2.685 AU)
    Jul 08 - Apollo Asteroid 1566 Icarus Closest Approach To Earth (1.005 AU)
    Jul 08 - Asteroid 757 Portlandia Closest Approach To Earth (1.568 AU)
    Jul 08 - Asteroid 624 Hektor (Jupiter Trojan) Closest Approach To Earth (4.339 AU)
    Jul 08 - 25th Anniversary (1992), Comet Shoemaker-Levy 9 Near-Jupiter Flyby (0.0008 AU), Comet Breakup
    * Jul 09 - Apollo Asteroid 2008 HU4 Closest Approach To Earth (0.641 AU)
    * Jul 09 - Asteroid 434 Hungaria Closest Approach To Earth (0.939 AU)
    Jul 09 - Apollo Asteroid 37655 Illapa Closest Approach To Earth (1.447 AU)
    Jul 09 - Asteroid 3156 Ellington Closest Approach To Earth (2.415 AU)
    Jul 10 - Cassini, Distant Flyby of Titan
    Jul 10 - Asteroid 365159 Garching Closest Approach To Earth (1.344 AU)
    Jul 10 - Asteroid 10806 Mexico Closest Approach To Earth (2.274 AU)
    Jul 10 - Dwarf Planet 134340 Pluto At Opposition (32.347 AU)
    Jul 10 - 25th Anniversary (1992), Giotto, Comet Grigg-Skjellerup Flyby
    Jul 10 - 55th Anniversary (1962), Telstar 1 Launch
    Jul 10 - Paolo Holvorcem's 50th Birthday (1967)
    Jul 10 - Alvan Clark's 180th Birthday (1832)
    Jul 10 - Roger Cotes' 335th Birthday (1682)
    * Jul 11 - Juno, Jupiter Flyby
    Jul 11 - Comet 311P/PANSTARRS Perihelion (1.936 AU)
    Jul 11 - Asteroid 5748 Davebrin Closest Approach To Earth (1.906 AU)
    Jul 11 - Ted Maiman's 90th Birthday (1927)
    Jul 11 - Jerome Lalande's 285th Birthday (1732)
    Jul 12 - Comet 73P-AL/Schwassmann-Wachmann Perihelion (0.961 AU)
    Jul 12 - Comet P/2004 FY140 (LINEAR) Closest Approach To Earth (3.659 AU)
    * Jul 12 - Aten Asteroid 136818 Selqet Closest Approach To Earth (0.273 AU)
    * Jul 12 - Asteroid 7079 Baghdad Closest Approach To Earth (0.711 AU)
    Jul 12 - Apollo Asteroid 5011 Ptah Closest Approach To Earth (1.812 AU)
    Jul 12 - Asteroid 18725 Atacama Closest Approach To Earth (2.080 AU)
    Jul 12 - Asteroid 3162 Nostalgia Closest Approach To Earth (2.586 AU)
    Jul 12 - 40th Anniversary (1977), High Engery Astronomical Observatory (HEAO-1) Launch
    Jul 12 - Rick Husband's 60th Birthday (1957)
    Jul 13 - Langley Research Center's 100th Birthday (1917)
    Jul 13 - Cassini, Distant Flyby of Ephimetheus, Pandora, Atlas & Prometheus
    Jul 13 - Moon Occults Neptune
    Jul 13 - Comet P/2008 O2 (McNaught) At Opposition (3.096 AU)
    Jul 13 - Asteroid 4355 Memphis Closest Approach To Earth (1.522 AU)
    * Jul 13 - Asteroid 14880 Moa Closest Approach To Earth (1.620 AU)
    * Jul 13 - Asteroid 5223 McSween Closest Approach To Earth (2.010 AU)
    Jul 13 - Asteroid 247553 Berndpauli Closest Approach To Earth (2.726 AU)
    Jul 13 - Neptune Trojan 2011 HM102 At Opposition (27.140 AU)
    Jul 13 - Heinrich Kreutz's 110th Birthday (1907)
    Jul 13 - Mary Lea Heger's 120th Birthday (1897)
    Jul 13 - John Dee's 490th Birthday (1527)
    * Jul 14 - Kanopus-V-IK 1/AISSat 3/CICERO 1/Corvus-BC 1 & 2/Perseus-O 1-4/MKA-N
    1 & 2/Mayak Soyuz-2-1a Fregat-M Launch
    * Jul 14 - Comet C/2017 D2 (Barros) Perihelion (2.484 AU)
    Jul 14 - Apollo Asteroid 2014 UV115 Near-Earth Flyby (0.096 AU)
    Jul 14 - Asteroid 7392 Kowalski Closest Approach To Earth (1.782 AU)
    Jul 14 - 70th Anniversary (1847), Braunau Meteorite Fall (Hit House in Czechoslovakia)
    Jul 15 - International Observe The Moon Night
    Jul 15 - ORS 5 Minotaur 4 Launch
    * Jul 15 - BeiDou-3 (M1 & M2) CZ-3C/YZ-1 Launch
    Jul 15 - Apollo Asteroid 2017 BS6 Near-Earth Flyby (0.055 AU)
    Jul 15 - Apollo Asteroid 2015 XZ378 Near-Earth Flyby (0.080 AU)
    * Jul 15 - Amor Asteroid 153591 (2001 SN263) (2 Moons) Closest Approach To Earth (1.768 AU)
    Jul 15 - 45th Anniversary (1972), Pioneer 10 Becomes 1st Spacecraft to Enter Main Asteroid Belt
    Jul 16 - Comet 332P-F/Ikeya-Murakami At Opposition (2.734 AU)
    Jul 16 - Comet P/2004 FY140 (LINEAR) At Opposition (3.662 AU)
    Jul 16 - Asteroid 91287 Simon-Garfunkel Closest Approach To Earth (1.345 AU)
    Jul 16 - Amor Asteroid 1915 Quetzalcoatl Closest Approach To Earth (1.984 AU)
    Jul 16 - Asteroid 132904 Notkin Closest Approach To Earth (2.441 AU)
    Jul 16 - Apollo Asteroid 5731 Zeus Closest Approach To Earth (2.453 AU)
    Jul 17 - Comet 189P/NEAT Closest Approach To Earth (0.360 AU)
    Jul 17 - Comet 217P/LINEAR Perihelion (1.235 AU)
    Jul 17 - Comet 217P/LINEAR Closest Approach To Earth (1.430 AU)
    Jul 17 - Comet 251P/LINEAR Perihelion (1.733 AU)
    Jul 17 - Comet 180P/NEAT At Opposition (2.999 AU)
    Jul 17 - Asteroid 2701 Cherson Occults HIP 98351 (6.3 Magnitude Star)
    Jul 17 - Asteroid 2247 Hiroshima Closest Approach To Earth (1.489 AU)
    Jul 17 - Asteroid 5277 Brisbane Closest Approach To Earth (1.605 AU)
    Jul 17 - Asteroid 7016 Conandoyle Closest Approach To Earth (1.617 AU)
    Jul 17 - Asteroid 7934 Sinatra Closest Approach To Earth (1.908 AU)
    Jul 17 - 50th Anniversary (1967), Denver Meteorite Fall (Hit Warehouse in Colorado)
    Jul 18 - Comet 213P/Van Ness Closest Approach To Earth (1.053 AU)
    Jul 18 - Comet 213P-B/Van Ness Closest Approach To Earth (1.055 AU)
    Jul 18 - Comet 332P-I/Ikeya-Murakami At Opposition (2.705 AU)
    Jul 18 - Comet 332P-B/Ikeya-Murakami At Opposition (2.706 AU)
    Jul 18 - Comet 332P-D/Ikeya-Murakami At Opposition (2.706 AU)
    Jul 18 - Comet 332P-H/Ikeya-Murakami At Opposition (2.707 AU)
    Jul 18 - Comet 332P-A/Ikeya-Murakami At Opposition (2.708 AU)
    Jul 18 - Comet 332P-E/Ikeya-Murakami At Opposition (2.709 AU)
    Jul 18 - Comet 332P-C/Ikeya-Murakami At Opposition (2.711 AU)
    Jul 18 - Comet 332P/Ikeya-Murakami At Opposition (2.717 AU)
    Jul 18 - Atira Asteroid 2015 DR215 Closest Approach To Earth (0.580 AU)
    * Jul 18 - Asteroid 7273 Garyhuss Closest Approach To Earth (1.652 AU)
    Jul 19 - Cassini, Distant Flyby of Atlas & Janus
    * Jul 19 - Asteroid 10183 Ampere Closest Approach To Earth (1.415 AU)
    Jul 19 - Asteroid 365756 ISON Closest Approach To Earth (7.659 AU)
    Jul 19 - 50th Anniversary (1967), Explorer 35 Launch (Moon Orbiter)
    Jul 19 - 105th Anniversary (1912), Holbrook Meteorite Shower (Hit Train Station in Arizona)
    Jul 20 - Moon Occults Aldebaran
    * Jul 20 - Atira Asteroid 2010 XB11 Closest Approach To Earth (0.735 AU)
    Jul 20 - Asteroid 3688 Navajo Closest Approach To Earth (3.179 AU)
    Jul 21 - Comet 185P/Petriew Closest Approach To Earth (1.606 AU)
    Jul 21 - Comet 81P/Wild At Opposition (2.338 AU)
    Jul 21 - Comet 332P-G/Ikeya-Murakami At Opposition (2.709 AU)
    Jul 21 - Asteroid 17640 Mount Stromlo Closest Approach To Earth (1.177 AU)
    Jul 21 - Asteroid 5649 Donnashirley Closest Approach To Earth (1.795 AU)
    Jul 21 - Asteroid 6318 Cronkite Closest Approach To Earth (2.339 AU)
    Jul 21 - 15th Anniversary (2002), Thuathe Meteorite Fall (Hit Houses in Lesotho)
    Jul 22 - FORMOSAT 5/Sherpa Falcon 9 Launch
    Jul 22 - Comet 253P/PANSTARRS Closest Approach To Earth (1.899 AU)
    Jul 22 - Asteroid 19631 Greensleeves Closest Approach To Earth (1.815 AU)
    Jul 22 - Asteroid 336694 Fey Closest Approach To Earth (1.985 AU)
    Jul 22 - Asteroid 3534 Sax Closest Approach To Earth (2.186 AU)
    Jul 22 - 45th Anniversary (1972), Venera 8, Venus Landing
    Jul 22 - 45th Anniversary (1972), Landsat 1 Launch
    Jul 23 - Comet 266P/Christensen At Opposition (3.618 AU)
    Jul 23 - Comet C/2015 W1 (Gibbs) At Opposition (4.230 AU)
    Jul 23 - Apollo Asteroid 2017 BS5 Near-Earth Flyby (0.008 AU)
    Jul 23 - Atira Asteroid 418265 (2008 EA32) Closest Approach To Earth (0.593 AU)
    Jul 23 - Asteroid 3252 Johnny Closest Approach To Earth (1.959 AU)
    Jul 23 - Apollo Asteroid 7092 Cadmus Closest Approach To Earth (2.854 AU)
    Jul 24 - Comet 73P-BC/Schwassmann-Wachmann Perihelion (0.961 AU)
    Jul 24 - Comet 293P/LINEAR At Opposition (4.153 AU)
    Jul 24 - Asteroid 11247 Wilburwright Closest Approach To Earth (1.801 AU)
    * Jul 24 - Asteroid 51826 Kalpanachawla Closest Approach To Earth (2.219 AU)
    Jul 24 - 25th Anniversary (1992), Geotail Launch
    Jul 24 - Amelia Earhart's 120th Birthday (1897)
    Jul 25 - Cassini, Distant Flyby of Titan & Pan
    Jul 25 - Moon Occults Mercury
    Jul 25 - Comet P/2009 S2 (McNaught) At Opposition (1.480 AU)
    Jul 25 - Apollo Asteroid 2014 WW202 Near-Earth Flyby (0.052 AU)
    Jul 25 - Apollo Asteroid 480858 (2001 PT9) Near-Earth Flyby (0.069 AU)
    Jul 25 - Asteroid 128 Nemesis Closest Approach To Earth (1.642 AU)
    Jul 25 - Asteroid 48300 Kronk Closest Approach To Earth (1.935 AU)
    Jul 26 - Comet 259P/Garradd At Opposition (0.872 AU)
    Jul 26 - Asteroid 1332 Marconia Occults HIP 104204 (6.7 Magnitude Star)
    Jul 26 - Apollo Asteroid 4660 Nereus Closest Approach To Earth (0.996 AU)
    * Jul 27 - Asteroid 90125 Chrissquire Closest Approach To Earth (1.729 AU)
    Jul 26 - Apollo Asteroid 2135 Aristaeus Closest Approach To Earth (1.771 AU)
    Jul 26 - Asteroid 5805 Glasgow Closest Approach To Earth (1.804 AU)
    Jul 26 - Asteroid 12820 Robinwilliams Closest Approach To Earth (1.868 AU)
    Jul 27 - Cassini, Distant Flyby of Titan
    Jul 27 - Moon Occults Asteroid 16 Psyche
    Jul 27 - Comet 259P/Garradd Closest Approach To Earth (0.872 AU)
    * Jul 27 - Asteroid 90125 Chrissquire Closest Approach To Earth (1.729 AU)
    Jul 27 - Asteroid 3125 Hay Closest Approach To Earth (2.106 AU)
    Jul 27 - Asteroid 1154 Astronomia Closest Approach To Earth (2.149 AU)
    Jul 27 - Wilhelm Brandes' 240th Birthday (1777)
    Jul 28 - Soyuz MS-5 Soyuz-FG Launch (International Space Station 51S)
    Jul 28 - Comet 198P/ODAS At Opposition (2.803 AU)
    Jul 28 - Comet 333P/LINEAR At Opposition (3.573 AU)
    Jul 28 - Asteroid 10101 Fourier Closest Approach To Earth (1.332 AU)
    Jul 28 - Asteroid 6111 Davemckay Closest Approach To Earth (1.487 AU)
    Jul 28 - Asteroid 5036 Tuttle Closest Approach To Earth (2.569 AU)
    Jul 28 - Charles Perrine's 150th Birthday (1867)
    Jul 29 - South Delta-Aquarids Meteor Shower Peak
    Jul 29 - Comet 164P/Christensen At Opposition (2.080 AU)
    Jul 29 - Apollo Asteroid 2017 FQ64 Near-Earth Flyby (0.073 AU)
    Jul 29 - Centaur Object 83982 Crantor At Opposition (17.417)
    Jul 29 - 35th Anniversary (1982), Burnup of Salyut 6 Space Station (USSR)
    Jul 30 - Mercury At Its Greatest Eastern Elongation (27 Degrees)
    Jul 30 - Asteroid 1094 Siberia Closest Approach To Earth (1.836 AU)
    Jul 30 - Vladimir Dezhurov's 55th Birthday (1962)
    Jul 31 - Asteroid 19398 Creedence Closest Approach To Earth (0.959 AU)
    Jul 31 - Asteroid 12410 Donald Duck Closest Approach To Earth (1.814 AU)
    Jul 31 - 25th Anniversary (1992), STS-46 Launch (Space Shuttle Atlantis, EURECA)

    August 2017
    Aug ?? - Optsat 3000/Venus/Samson 1-3 Vega Launch
    Aug ?? - ICON (Helio-EX 1) Pegasus XL Launch
    * Aug ?? - Sentinel 5P Rokot/Briz-KM Launch
    Aug 01 - 50th Anniversary (1967), Lunar Orbiter 5 Launch
    Aug 01 - CRS-12/ASTERIA/LAICE/RBLE/AOSAT 1/OPAL/OSIRIS-3U/Overview 1A Falcon
    9 Launch
    Aug 01 - Cassini, Distant Flyby of Prometheus, Pandora & Pan
    Aug 01 - Alpha Capricornids Meteor Shower Peak
    Aug 01 - Comet 77P/Longmore Closest Approach To Earth (2.573 AU)
    Aug 01 - Comet P/2001 H5 (NEAT) At Opposition (4.188 AU)
    * Aug 01 - Asteroid 2161 Grissom Closest Approach To Earth (1.533 AU)
    Aug 01 - Asteroid 3140 Stellafane Closest Approach To Earth (1.829 AU)
    Aug 01 - Asteroid 22739 Sikhote-Alin Closest Approach To Earth (2.033 AU)
    Aug 01 - Asteroid 29132 Bradpitt Closest Approach to Earth (2.168 AU)
    Aug 01 - Asteroid 1125 China Closest Approach To Earth (2.736 AU)
    Aug 01 - Kuiper Belt Object 2013 AT183 At Opposition (63.416 AU)
    Aug 02 - Comet 163P/NEAT At Opposition (3.638 AU)
    Aug 02 - Asteroid 20488 Pic-du-Midi Closest Approach To Earth (1.365 AU)
    Aug 02 - Asteroid 30441 Curly Closest Approach To Earth (1.644 AU)
    Aug 02 - Asteroid 9997 COBE Closest Approach To Earth (1.646 AU)
    Aug 02 - Peter Jenniskens' 55th Birthday (1962)
    Aug 03 - TDRS M Atlas 5 Launch
    Aug 03 - Comet 73P-AS/Schwassmann-Wachmann Perihelion (0.960 AU)
    Aug 03 - Comet C/2015 H2 (PANSTARRS) Closest Approach To Earth (4.618 AU)
    Aug 03 - Asteroid 281 Lucretia Closest Approach To Earth (1.203 AU)
    Aug 03 - Asteroid 6377 Cagney Closest Approach To Earth (1.451 AU)
    Aug 03 - Centaur Object 52872 Okyrhoe At Opposition (9.587 AU)
    Aug 04 - Comet 2P/Encke At Opposition (1.288 AU)
    Aug 04 - Asteroid 12485 Jenniferharris Closest Approach To Earth (1.219 AU)
    Aug 04 - Asteroid 4970 Druyan Closest Approach To Earth (1.486 AU)
    Aug 04 - Asteroid 216 Kleopatra Closest Approach To Earth (1.672 AU)
    Aug 04 - Asteroid 6676 Monet Closest Approach To Earth (2.627 AU)
    Aug 04 - 10th Anniversary (2007), Phoenix Launch (Mars Lander)
    Aug 05 - GRACE-FO 1 & 2 Dnepr-1 Launch
    Aug 05 - Comet 339P/Gibbs Closest Approach To Earth (2.688 AU)
    Aug 05 - Comet 116P/Wild Closest Approach To Earth (2.866 AU)
    Aug 05 - Kuiper Belt Object 2008 OG19 At Opposition (37.654 AU)
    Aug 05 - 5th Anniversary (2012), Mars Science Laboratory (MSL), Mars Landing
    Aug 05 - Brian Marsden's 80th Birthday (1937)
    Aug 05 - Niels Abel's 215th Birthday (1802)
    Aug 06 - Southern Iota Aquarids Meteor Shower Peak
    Aug 06 - Comet 189P/NEAT Perihelion (1.213 AU)
    Aug 06 - Comet P/2009 S2 (McNaught) Closest Approach To Earth (1.461 AU)
    Aug 06 - Comet 259P/Garradd Perihelion (1.809 AU)
    Aug 06 - Comet 171P/Spahr At Opposition (3.037 AU)
    Aug 06 - Asteroid 5247 Krylov Occults HIP 104172 (6.1 Magnitude Star)
    Aug 06 - Asteroid 3351 Smith Closest Approach To Earth (1.530 AU)
    Aug 06 - Asteroid 1258 Sicilia Closest Approach To Earth (2.109 AU)
    Aug 06 - Sylvain Arend's 115th Birthday (1902)
    Aug 06 - Johann Bernoulli's 350th Birthday (1667)
    Aug 07 - Partial Lunar Eclipse
    Aug 07 - Cassini, Distant Flyby of Janus, Atlas & Epimetheus
    Aug 07 - Comet 236P/LINEAR At Opposition (1.118 AU)
    Aug 07 - Comet C/2017 D2 (Barros) Closest Approach To Earth (1.504 AU)
    Aug 07 - Apollo Asteroid 1991 VG Near-Earth Flyby (0.057 AU)
    Aug 07 - Apollo Asteroid 2007 PS9 Near-Earth Flyby (0.077 AU)
    Aug 07 - Apollo Asteroid 2016 YR Near-Earth Flyby (0.095 AU)
    Aug 07 - Asteroid 3672 Stevedberg Closest Approach To Earth (1.173 AU)
    Aug 07 - Asteroid 8664 Grigorijrichters Closest Approach To Earth (1.279 AU)
    Aug 07 - Asteroid 5553 Chodas Closest Approach To Earth (2.218 AU)
    Aug 07 - 20th Anniversary (1997), STS-85 Launch (Space Shuttle Discovery, CRISTA-SPAS)
    Aug 08 - Apollo Asteroid 2003 OT13 Near-Earth Flyby (0.093 AU)
    Aug 08 - Aten Asteroid 153415 (2001 QP153) Near-Earth Flyby (0.095 AU)
    Aug 08 - Asteroid 25924 Douglasadams Closest Approach To Earth (1.162 AU)
    Aug 08 - Asteroid 3673 Levy Closest Approach To Earth (1.408 AU)
    Aug 08 - 10th Anniversary (2007), STS-118 Launch (Space Shuttle Endeavour, International Space Station)
    Aug 08 - 40th Anniversary (1977), Salyut 5 Space Station Burnup
    Aug 08 - Ferdinand Quenisset's 145th Birthday (1872)
    Aug 09 - Moon Occults Neptune
    Aug 09 - Comet 198P/ODAS Closest Approach To Earth (2.783 AU)
    Aug 09 - Asteroid 12477 Haiku Closest Approach To Earth (1.413 AU)
    Aug 09 - Asteroid 6227 Alanrubin Closest Approach To Earth (1.811 AU)
    Aug 09 - 135th Anniversary (1872), 1st Photo of the Spectrum of a Star (Vega)
    by Henry Draper
    Aug 10 - Comet 73P-AL/Schwassmann-Wachmann Closest Approach To Earth (0.277 AU)
    Aug 10 - Comet 38P/Stephan-Oterma At Opposition (3.978 AU)
    Aug 10 - Apollo Asteroid 2015 XO128 Near-Earth Flyby (0.095 AU)
    Aug 10 - Asteroid 945 Barcelona Closest Approach To Earth (2.030 AU)
    Aug 10 - Asteroid 17062 Bardot Closest Approach To Earth (2.057 AU)
    Aug 10 - 25th Anniversary (1992), TOPEX/Poseidon Launch
    Aug 10 - 25th Anniversary (1992), Kitsat A Launch (1st South Korean Satellite)
    Aug 10 - 45th Anniversary (1972), Daylight Fireball (Utah, Canada)
    Aug 10 - 85th Anniversary (1932), Archie Meteorite Fall (Near-Miss From Hitting Man in Missouri)
    Aug 11 - Cassini, Distant Flyby of Titan
    Aug 11 - Comet 73P-AP/Schwassmann-Wachmann Perihelion (0.959 AU)
    Aug 11 - Comet 29P/Schwassmann-Wachmann At Opposition (4.813 AU)
    Aug 11 - Asteroid 1587 Kahrstedt Occults HIP 32311 (5.4 Magnitude Star)
    Aug 11 - Asteroid 18024 Dobson Closest Approach To Earth (2.185 AU)
    Aug 11 - 55th Anniversary (1962), Vostok 3 Launch
    Aug 11 - 140th Anniversary (1877), Asaph Hall's Discovery of Mars Moon Deimos

    Aug 12 - Comet P/2012 T1 (PANSTARRS) At Opposition (1.714 AU)
    Aug 12 - Comet 29P/Schwassmann-Wachmann Closest Approach To Earth (4.813 AU)
    Aug 12 - Aten Asteroid 2013 ND15 (Venus Trojan) Closest Approach To Earth (1.160 AU)
    Aug 12 - Asteroid 13212 Jayleno Closest Approach To Earth (1.299 AU)
    Aug 12 - Apollo Asteroid 5143 Heracles Closest Approach To Earth (1.634 AU)
    Aug 12 - Asteroid 8991 Solidarity Closest Approach To Earth (1.663 AU)
    Aug 12 - 40th Anniversary (1977), HEAO 1 Launch
    Aug 12 - 55th Anniversary (1962), Vostok 4 Launch
    Aug 12 - Otto Struve's 120th Birthday (1897)
    Aug 13 - Comet C/2017 D2 (Barros) At Opposition (1.508 AU)
    Aug 13 - Comet 214P/LINEAR At Opposition (3.401 AU)
    Aug 13 - Comet 203P/Korlevic At Opposition (4.122 AU)
    Aug 13 - Apollo Asteroid 2014 OA339 Near-Earth Flyby (0.032 AU)
    Aug 13 - Apollo Asteroid 2003 MJ4 Near-Earth Flyby (0.098 AU)
    Aug 13 - Asteroid 4147 Lennon Closest Approach To Earth (1.346 AU)
    Aug 13 - Asteroid 3895 Earhart Closest Approach To Earth (1.739 AU)
    Aug 13 - Asteroid 447 Valentine Closest Approach To Earth (1.936 AU)
    Aug 13 - Asteroid 284996 Rosaparks Closest Approach To Earth (2.050 AU)
    Aug 13 - Asteroid 656 Beagle Closest Approach To Earth (2.544 AU)
    Aug 13 - Heinrich d'Arrest's 195th Birthday (1822)
    Aug 13 - 345th Anniversary (1672), Christiaan Huygens' Discovery of Mars' South Polar Cap
    Aug 14 - NROL-42/Trumpet Atlas 5 Launch
    Aug 14 - Cassini, Distant Flyby of Atlas & Prometheus
    Aug 14 - Comet P/2007 V1 (Larson) At Opposition (3.222 AU)
    Aug 14 - Asteroid 930 Westphalia Occults HIP 34358 (5.9 Magnitude Star)
    Aug 14 - Asteroid 13609 Lewicki Closest Approach To Earth (1.293 AU)
    Aug 14 - 25th Anniversary (1992), Mbale Meteorite Fall (Hit Boy in Uganda)
    Aug 15 - Comet 116P/Wild At Opposition (2.882 AU)
    Aug 15 - Comet P/2010 B2 (WISE) At Opposition (3.450 AU)
    Aug 15 - Comet P/2009 WX51 (Catalina) At Opposition (4.198 AU)
    Aug 15 - Comet 95P/Chiron Occults 2UCAC 32806659 (14.3 Magnitude Star)
    Aug 15 - Apollo Asteroid 414990 (2011 EM51) Near-Earth Flyby (0.078 AU)
    * Aug 15 - Apollo Asteroid 1566 Icarus Closest Approach To Earth (1.109 AU)
    Aug 15 - Asteroid 3933 Portugal Closest Approach To Earth (1.967 AU)
    Aug 15 - Louis de Broglie's 125th Birthday (1892)
    * Aug 16 - Zhangheng 1 (CSES 1)/Fengmaniu 1 CZ-2D Launch
    Aug 16 - Moon Occults Aldebaran
    Aug 16 - Comet 77P/Longmore At Opposition (2.601 AU)
    Aug 16 - Comet 3D/Biela At Opposition (2.887 AU)
    Aug 16 - Asteroid 37582 Faraday Closest Approach To Earth (0.952 AU)
    Aug 16 - Asteroid 2713 Luxemburg Closest Approach To Earth (1.799 AU)
    Aug 17 - Comet 69P/Taylor At Opposition (3.139 AU)
    Aug 17 - Comet C/2015 H2 (PANSTARRS) At Opposition (4.644 AU)
    Aug 17 - Apollo Asteroid 2002 CY58 Near-Earth Flyby (0.068 AU)
    Aug 17 - Apollo Asteroid 2016 CD137 Near-Earth Flyby (0.099 AU)
    Aug 17 - Atira Asteroid 2015 ME131 Closest Approach To Earth (0.415 AU)
    Aug 17 - Asteroid 5107 Laurenbacall Closest Approach To Earth (2.271 AU)
    Aug 17 - Kathyrn Thornton's 65th Birthday (1952)
    Aug 17 - 140th Anniversary (1877), Asaph Hall's Discovery of Mars Moon Phobos
    Aug 17 - 260th Anniversary (1757), The Opening of the Macfarlane Observatory
    Aug 18 - Comet P/2010 P4 (WISE) Perihelion (1.861 AU)
    Aug 18 - Comet 164P/Christensen Closest Approach To Earth (2.026 AU)
    Aug 18 - Apollo Asteroid 2012 BD14 Near-Earth Flyby (0.067 AU)
    Aug 18 - Asteroid 13208 Fraschetti Closest Approach To Earth (0.966 AU)
    Aug 19 - Comet P/2012 T1 (PANSTARRS) Closest Approach To Earth (1.707 AU)
    Aug 19 - Comet 30P/Reinmuth Perihelion (1.877 AU)
    Aug 19 - Asteroid 3654 AAS Closest Approach To Earth (0.982 AU)
    Aug 19 - Asteroid 1132 Hollandia Closest Approach To Earth (1.016 AU)
    Aug 19 - 20th Anniversary (1997), Mabuhay 1 Launch (1st Philippine Satellite)

    Aug 20 - Cassini, Distant Flyby of Pandora, Pan & Daphnis
    Aug 20 - Asteroid 3852 Glennford Closest Approach To Earth (1.708 AU)
    Aug 20 - Asteroid 78577 JPL Closest Approach To Earth (2.003 AU)
    Aug 20 - Asteroid 48575 Hawaii Closest Approach To Earth (2.299 AU)
    Aug 20 - Asteroid 249516 Aretha Closest Approach To Earth (2.325 AU)
    Aug 20 - Asteroid 5335 Damocles (Burnt Out Comet) At Opposition (19.683 AU)
    Aug 20 - 40th Anniversary (1977), Voyager 2 Launch
    Aug 21 - Total Solar Eclipse (Visible from United States)
    Aug 21 - Comet C/2015 VL62 Closest Approach To Earth (1.742 AU)
    Aug 21 - Comet C/2015 VL62 At Opposition (1.742 AU)
    Aug 21 - Asteroid 5540 Smirnova Closest Approach To Earth (0.824 AU)
    Aug 21 - Asteroid 1850 Kohoutek Closest Approach To Earth (1.135 AU)
    Aug 21 - Asteroid 1814 Bach Closest Approach To Earth (1.339 AU)
    Aug 21 - Asteroid 15332 CERN Closest Approach To Earth (1.566 AU)
    Aug 21 - Asteroid 6639 Marchis Closest Approach To Earth (1.841 AU)
    Aug 21 - 45th Anniversary (1972), Copernicus Launch
    Aug 22 - Comet 5D/Brorsen Closest Approach To Earth (1.120 AU)
    Aug 22 - Asteroid 3 Juno Occults 2UCAC 28762234 (12.4 Magnitude Star)
    Aug 22 - Asteroid 2865 Laurel Closest Approach To Earth (1.498 AU)
    Aug 22 - Asteroid 804 Hispania Closest Approach To Earth (1.439 AU)
    Aug 22 - Asteroid 1791 Patsayev Closest Approach To Earth (1.511 AU)
    Aug 22 - Asteroid 8423 Macao Closest Approach To Earth (1.627 AU)
    Aug 22 - Asteroid 289586 Shackleton Closest Approach To Earth (1.644 AU)
    Aug 22 - Raymonde de Laroche's 135th Birthday (1882)
    Aug 23 - Comet 49P/Arend-Rigaux At Opposition (2.273 AU)
    Aug 23 - Comet 247P/LINEAR At Opposition (3.161 AU)
    Aug 23 - Comet P/2016 BA14 (PANSTARRS) At Opposition (3.283 AU)
    * Aug 23 - Apollo Asteroid 54509 YORP Closest Approach To Earth (0.652 AU)
    Aug 23 - Lubor Kresak's 90th Birthday (1927)
    Aug 24 - Iridium Next 21-30 Falcon 9 Launch
    Aug 24 - Comet 73P-BC/Schwassmann-Wachmann Closest Approach To Earth (0.441 AU)
    Aug 24 - Comet 339P/Gibbs At Opposition (2.742 AU)
    Aug 24 - Comet P/2011 W2 (Rinner) At Opposition (3.115 AU)
    Aug 24 - Comet 252P/LINEAR At Opposition (3.308 AU)
    Aug 24 - Comet P/2016 A7 (PANSTARRS) At Opposition (3.550 AU)
    Aug 24 - Asteroid 2531 Cambridge Closest Approach To Earth (2.176 AU)
    Aug 24 - Asteroid 88705 Potato Closest Approach To Earth (2.213 AU)
    Aug 24 - Asteroid 51827 Laurelclark Closest Approach To Earth (2.309 AU)
    Aug 25 - Northern Iota Aquarids Meteor Shower Peak
    Aug 25 - Apollo Asteroid 2005 QQ87 Near-Earth Flyby (0.087 AU)
    Aug 25 - Asteroid 2598 Merlin Closest Approach To Earth (1.651 AU)
    Aug 25 - Asteroid 2305 King Closest Approach To Earth (1.732 AU)
    Aug 25 - Asteroid 2742 Gibson Closest Approach To Earth (1.851 AU)
    Aug 25 - Asteroid 18728 Grammier Closest Approach To Earth (2.123 AU)
    Aug 25 - 20th Anniversary (1997), Advanced Composition Explorer (ACE) Launch
    Aug 26 - Cassini, Distant Flyby of Titan
    Aug 27 - Cassini, Distant Flyby of Janus, Daphnis, Prometheus, Epimetheus, Pandora & Pan
    Aug 27 - Comet C/2016 P4 (PANSTARRS) Closest Approach To Earth (5.316 AU)
    Aug 27 - Amor Asteroid 2202 Pele Closest Approach To Earth (0.670 AU)
    Aug 27 - Asteroid 5945 Roachapproach Closest Approach To Earth (0.909 AU)
    Aug 27 - Asteroid 51824 Mikeanderson Closest Approach To Earth (1.661 AU)
    Aug 27 - Asteroid 2710 Veverka Closest Approach To Earth (1.703 AU)
    Aug 27 - Asteroid 9025 Polansky Closest Approach To Earth (1.757 AU)
    Aug 27 - Asteroid 508 Princetonia Closest Approach To Earth (2.188 AU)
    Aug 27 - Kuiper Belt Object 225088 (2007 OR10) At Opposition (86.829 AU)
    Aug 27 - 55th Anniversary (1962), Mariner 2 Launch
    Aug 28 - Cassini, Distant Flyby of Titan
    Aug 28 - Comet 349P/Lemmon Perihelion (2.496 AU)
    Aug 28 - Comet C/2015 VL62 Perihelion (2.720 AU)
    Aug 28 - Amor Asteroid 2015 RQ35 Near-Earth Flyby (0.098 AU)
    Aug 28 - Apollo Asteroid 3752 Camillo Closest Approach To Earth (0.558 AU)
    Aug 28 - Asteroid 29470 Higgs Closest Approach To Earth (1.575 AU)
    Aug 28 - Asteroid 293 Brasilia Closest Approach To Earth (2.207 AU)
    Aug 28 - Kuiper Belt Object 2004 NT33 At Opposition (38.173 AU)
    Aug 28 - George Alcock's 105th Birthday (1912)
    Aug 29 - Comet 236P/LINEAR Closest Approach To Earth (1.074 AU)
    Aug 29 - Asteroid 14094 Garneau Closest Approach To Earth (1.765 AU)
    Aug 29 - Centaur Object 7066 Nessus At Opposition (26.750 AU)
    Aug 29 - Kuiper Belt Object 307982 (2004 PG115) At Opposition (37.184 AU)
    Aug 30 - Comet 145P/Shoemaker-Levy Perihelion (1.897 AU)
    * Aug 30 - Aten Asteroid 2100 Ra-Shalom Closest Approach To Earth (1.211 AU)
    Aug 30 - Asteroid 87 Sylvia (2 Moons) Closest Approach To Earth (2.176 AU)
    Aug 30 - 25th Anniversary (1992), David Jewitt's & Jane Luu's Discovery of the 1st Kuiper Belt Object (1992 QB1)
    Aug 31 - Comet P/2008 T4 (Hill) At Opposition (2.126 AU)
    Aug 31 - Dwarf Planet Ceres Occults TYC 1910-00447-1 (7.9 Magnitude Star)
    Aug 31 - Asteroid 5040 Rabinowitz Closest Approach To Earth (0.891 AU)
    Aug 31 - Asteroid 2575 Bulgaria Closest Approach To Earth (1.215 AU)
    Aug 31 - Asteroid 1159 Granada Closest Approach To Earth (1.262 AU)
    Aug 31 - Asteroid 2864 Soderblom Closest Approach To Earth (2.137 AU)
    Aug 31 - Centaur Object 944 Hidalgo At Opposition (3.287 AU)
    Aug 31 - Kuiper Belt Object 2003 QX113 At Opposition (59.043 AU)
    Aug 31 - 25th Anniversary (1992), Theodore Von Karman Stamp Release
    Aug 31 - 55th Anniversary (1962), John F. Kennedy Signs Communications Satellite Act
    Aug 31 - 85th Anniversary (1932), 1st Photo Showing Moon's Shadow on the Earth during Solar Ecipse Taken By Capt Albert Stevens
    Aug 31 - 175th Anniverdary (1842), US Naval Observatory Authorized by Act of Congress
    Aug 31 - Edouard Stephan's 180th Birthday (1837)
    Aug 31 - James Ferguson's 220th Birthday (1797)

    September 2017
    Sep ?? - GPS 3-1 Delta 4 Launch
    Sep ?? - AngoSat 1/Energia 100 Angara-A5/DM-03 Launch
    Sep ?? - SkySat 8-13/COPPER 2/CPOD A & B/MinXSS 2/RANGE A & B Minotaur-C-XL-3210 Launch
    * Sep ?? - GSAT-6A GSLV Mk II Launch
    * Sep ?? - BeiDou-3 (M3 & M4) CZ-3C/YZ-1 Launch
    Sep 01 - Comet 73P-BL/Schwassmann-Wachmann Closest Approach To Earth (1.044 AU)
    Sep 01 - Comet 100P/Hartley Closest Approach To Earth (2.846 AU)
    Sep 01 - Amor Asteroid 3122 Florence Near-Earth Flyby (0.047 AU)
    Sep 01 - Asteroid 7507 Israel Closest Approach To Earth (0.890 AU)
    Sep 01 - Plutino 175113 (2004 PF115) At Opposition (40.557 AU)
    Sep 01 - Kuiper Belt Object 120178 (2003 OP32) At Opposition (41.265 AU)
    Sep 01 - 20th Anniversary (1997), Worden Meteorite (Hit Garage & Car in Michigan)
    Sep 01 - 35th Anniversary (1982), Founding of the United States Air Force Space Command
    Sep 01 - Dirk Brouwer's 115th Birthday (1902)
    Sep 01 - 135th Anniversary (1882), Discovery of the Great Comet of 1882
    Sep 01 - Francis Aston's 140th Birthday (1877)
    Sep 01 - Rado von Kovesligethy's 155th Birthday (1862)
    Sep 02 - Cassini, Distant Flyby of Daphnis & Atlas
    Sep 02 - Mercury Passes 4.1 Degrees from Mars
    Sep 02 - Comet 73P-AS/Schwassmann-Wachmann Closest Approach To Earth (0.596 AU)
    * Sep 02 - Apollo Asteroid 101955 Bennu Closest Approach To Earth (0.336 AU)
    Sep 02 - Asteroid 55555 DNA Closest Approach To Earth (1.285 AU)
    Sep 02 - Asteroid 5190 Fry Closest Approach To Earth (2.411 AU)
    Sep 02 - 50th Anniversary (1967), Wiluna Meteorite Shower in Australia
    Sep 02 - Frederick Soddy's 140th Birthday (1877)
    Sep 02 - 265th Anniversary (1752), British Empire Adopts Gregorian Calendar
    Sep 03 - Comet P/2001 T3 (NEAT) At Opposition (2.437 AU)
    Sep 03 - Asteroid 9258 Johnpauljones Closest Approach To Earth (0.900 AU)
    Sep 03 - Asteroid 241 Germania Closest Approach To Earth (1.740 AU)
    Sep 03 - Asteroid 218998 Navi Closest Approach To Earth (1.747 AU)
    Sep 03 - Asteroid 73511 Lovas Closest Approach To Earth (1.983 AU)
    Sep 03 - Apollo Asteroid 217628 Lugh Closest Approach To Earth (2.875 AU)
    Sep 03 - 15th Anniversary (2003), Discovery of J002E3 (Apollo 12 Rocket Stage)
    Sep 03 - Gerry Neugebauer's 85th Birthday (1932)
    Sep 03 - Ralph Copeland's 180th Birthday (1837)
    Sep 04 - Asteroid 3354 McNair Closest Approach To Earth (1.187 AU)
    Sep 04 - Apollo Asteroid 11885 Summanus Closest Approach To Earth (1.440 AU)
    Sep 04 - Asteroid 8958 Stargazer Closest Approach To Earth (1.492 AU)
    Sep 04 - Asteroid 12382 Niagara Falls Closest Approach To Earth (1.699 AU)
    Sep 04 - 5th Anniversary (2012), Dawn, Vesta Departure
    Sep 04 - 55th Anniversary (1962), 1st Rocket Maneuver in Deep Space (Mariner 2)
    Sep 04 - Oscar Monnig's 115th Birthday (1902)
    Sep 05 - Neptune At Opposition
    Sep 05 - Comet C/2017 E4 (Lovejoy) Closest Approach To Earth (2.298 AU)
    Sep 05 - Comet 3D/Biela Closest Approach To Earth (2.824 AU)
    Sep 05 - Apollo Asteroid 5786 Talos Closest Approach To Earth (0.956 AU)
    Sep 05 - Asteroid 1095 Tulipa Closest Approach To Earth (2.085 AU)
    Sep 05 - 40th Anniversary (1977), Voyager 1 Launch
    Sep 06 - Moon Occults Neptune
    Sep 06 - Comet P/2016 J1-A (PANSTARRS) Closest Approach To Earth (2.181 AU)
    Sep 06 - Comet P/2016 J1-B (PANSTARRS) Closest Approach To Earth (2.181 AU)
    Sep 06 - Comet C/2016 T3 (PANSTARRS) Perihelion (2.650 AU)
    Sep 06 - Comet C/2016 P4 (PANSTARRS) At Opposition (5.330 AU)
    Sep 06 - Asteroid 18125 Brianwilson Closest Approach To Earth (1.723 AU)
    Sep 06 - Kuiper Belt Object 145452 (2005 RN43) At Opposition (39.622 AU)
    Sep 06 - Edward Appleton's 125th Birthday (1892)
    Sep 07 - Comet 298P/Christensen At Opposition (3.936 AU)
    Sep 07 - Asteroid 3259 Brownlee Closest Approach To Earth (2.532 AU)
    Sep 07 - Centaur Object 37117 Narcissus At Opposition (3.561 AU)
    Sep 07 - Kuiper Belt Object 2010 RF43 At Opposition (52.546 AU)
    Sep 07 - 10th Anniversary (2007), Guadalajara Meteorite Fall (Hit House in Mexico)
    Sep 08 - Comet 73P-AQ/Schwassmann-Wachmann Closest Approach To Earth (1.138 AU)
    Sep 08 - Comet 14P/Wolf At Opposition (1.864 AU)
    Sep 08 - Comet C/2014 B1 (Schwartz) Perihelion (9.558 AU)
    Sep 08 - Asteroid 3594 Scotti Closest Approach To Earth (1.598 AU)
    Sep 08 - Asteroid 270553 Loureed Closest Approach To Earth (1.740 AU)
    Sep 08 - Asteroid 296907 Alexander Closest Approach To Earth (1.919 AU)
    Sep 08 - 25th Anniversary (1992), Geotail, Moon Flyby
    Sep 08 - 50th Anniversary (1967), Surveyor 5 Launch (Moon Lander)
    Sep 08 - Arthur Wahl's 100th Birthday (1917)
    Sep 08 - Hans Fichtner's 100th Birthday (1917)
    Sep 09 - Cassini, Distant Flyby of Daphnis, Atlas & Prometheus
    Sep 09 - Comet 73P-AR/Schwassmann-Wachmann Closest Approach To Earth (1.150 AU)
    Sep 09 - Comet 73P-AG/Schwassmann-Wachmann Closest Approach To Earth (1.152 AU)
    Sep 09 - Asteroid 6925 Susumu Occults HIP 21673 (5.1 Magnitude Star)
    Sep 09 - Asteroid 904 Rockefellia Occults HIP 30602 (6.4 Magnitude Star)
    Sep 09 - Apollo Asteroid 2015 FO124 Near-Earth Flyby (0.070 AU)
    Sep 09 - Asteroid 19383 Rolling Stones Closest Approach To Earth (0.965 AU)
    Sep 09 - Asteroid 727 Nipponia Closest Approach To Earth (1.430 AU)
    Sep 09 - Asteroid 876 Scott Closest Approach To Earth (1.674 AU)
    Sep 09 - Asteroid 1604 Tombaugh Closest Approach To Earth (1.718 AU)
    Sep 09 - 35th Anniversary (1982), Conestoga I Launch (1st Private Rocket)
    Sep 09 - 125th Anniversary (1892), Edward Barnard's Discovery of Jupiter Moon
    Amalthea
    Sep 09 - John Poynting's 165th Birthday (1852)
    Sep 09 - 210th Anniversary (1807), Parisi's Discovery of The Great Comet of 1807
    Sep 10 - Comet 73P-AP/Schwassmann-Wachmann Closest Approach To Earth (0.730 AU)
    Sep 10 - Comet P/2013 EW90 (Tenagra) At Opposition (3.829 AU)
    Sep 10 - Asteroid 3124 Kansas Closest Approach To Earth (1.532 AU)
    * Sep 10 - Asteroid 8629 Chucklorre Closest Approach To Earth (1.629 AU)
    Sep 10 - Asteroid 3728 IRAS Closest Approach To Earth (1.693 AU)
    Sep 10 - Asteroid 8103 Fermi Closest Approach To Earth (1.985 AU)
    Sep 10 - Arthur Compton's 125th Birthday (1892)
    Sep 10 - James Keeler's 160th Birthday (1857)
    Sep 11 - Cassini, Distant Flyby of Titan
    Sep 11 - Apollo Asteroid 2014 RC Near-Earth Flyby (0.039 AU)
    Sep 11 - Asteroid 21619 Johnhopkins Closest Approach To Earth (1.390 AU)
    Sep 11 - Asteroid 7225 Huntress Closest Approach To Earth (1.622 AU)
    Sep 11 - 20th Anniversary (1997), Mars Global Surveyor, Mars Orbit Insertion
    Sep 11 - Robert Crippen's 80th Birthday (1937)
    Sep 11 - James Jeans' 140th Birthday (1877)
    * Sep 12 - Cygnus CRS OA-8E Antares 230 Launch (International Space Station)
    Sep 12 - Mercury At Its Greatest Western Elongation (18 Degrees)
    Sep 12 - Moon Occults Aldebaran
    Sep 12 - Comet 73P-P/Schwassmann-Wachmann Closest Approach To Earth (1.198 AU)
    Sep 12 - Comet 240P/NEAT At Opposition (1.925 AU)
    Sep 12 - Comet 49P/Arend-Rigaux Closest Approach To Earth (2.216 AU)
    Sep 12 - Comet 14P/Wolf Closest Approach To Earth (1.862 AU)
    Sep 12 - Asteroid 2653 Principia Closest Approach To Earth (1.624 AU)
    Sep 12 - 25th Anniversary (1992), STS-47 Launch (Space Shuttle Endeavour, Spacelab-J)
    Sep 12 - 25th Anniversary (1992), 1st African-American Woman in Space (Mae Jemison)
    Sep 12 - 55th Anniversary (1962), John F. Kennedy's Moon Speech
    Sep 12 - Robert Farquhar's 85th Birthday (1932)
    * Sep 13 - Soyuz MS-6 Soyuz-FG Launch (International Space Station 52S)
    Sep 13 - Comet P/2008 T4 (Hill) Closest Approach To Earth (2.104 AU)
    Sep 13 - Comet 239P/LINEAR At Opposition (3.321 AU)
    Sep 13 - Asteroid 39566 Carllewis Closest Approach To Earth (0.829 AU)
    Sep 13 - Asteroid 28078 Mauricehilleman Closest Approach To Earth (1.136 AU)
    Sep 13 - Asteroid 11020 Orwell Closest Approach To Earth (1.838 AU)
    Sep 13 - 10th Anniversary (2007), Kaguya (Selene 1) Launch (Japan Moon Orbiter)
    Sep 13 - Horace Babcock's 105th Birthday (1912)
    Sep 14 - Apollo Asteroid 310560 (2001 QL142) Near-Earth Flyby (0.058 AU)
    Sep 14 - Asteroid 6032 Nobel Closest Approach To Earth (0.871 AU)
    Sep 14 - Asteroid 14764 Kilauea Closest Approach To Earth (1.102 AU)
    Sep 15 - Cassini, Distant Flyby of Janus, Pan, Pandora & Epimetheus
    Sep 15 - Cassini, Saturn Impact
    Sep 15 - Comet 73P-AC/Schwassmann-Wachmann Closest Approach To Earth (1.251 AU)
    Sep 15 - Comet P/2016 J1-A (PANSTARRS) At Opposition (2.192 AU)
    Sep 15 - Comet P/2016 J1-B (PANSTARRS) At Opposition (2.192 AU)
    Sep 15 - Comet 100P/Hartley At Opposition (2.874 AU)
    Sep 15 - Asteroid 6030 Zolensky Closest Approach To Earth (1.966 AU)
    Sep 15 - Asteroid 16522 Tell Closest Approach To Earth (2.088 AU)
    Sep 15 - 10th Anniversary (2007), Carancas Meteorite Fall in Peru (Created Crater)
    Sep 16 - International Day for the Preservation of the Ozone Layer
    Sep 16 - Mercury Passes 0.05 Degrees from Mars
    Sep 16 - Comet P/2010 H2 (Vales) Perihelion (3.097 AU)
    Sep 16 - Aten Asteroid 2014 RX22 Near-Earth Flyby (0.080 AU)
    Sep 16 - Asteroid 7336 Saunders Closest Approach To Earth (0.237 AU)
    Sep 17 - Asteroid 18458 Caesar Closest Approach To Earth (1.535 AU)
    Sep 17 - Asteroid 449 Hamburga Closest Approach To Earth (1.862 AU)
    Sep 17 - Asteroid 15614 Pillinger Closest Approach To Earth (1.910 AU)
    Sep 17 - 20th Anniversary (1997), Galileo, Callisto 10 Flyby
    Sep 17 - Petr Pravec's 50th Birthday (1967)
    Sep 17 - Konstantin Tsiolkovsky's 160th Birthday (1857)
    Sep 18 - Moon Occults Venus
    Sep 18 - Moon Occults Mercury
    Sep 18 - Moon Occults Mars
    Sep 18 - Moon Occults Regulus
    Sep 18 - Comet 60P/Tsuchinshan At Opposition (2.766 AU)
    Sep 18 - Asteroid 3917 Franz Schubert Closest Approach To Earth (1.346 AU)
    Sep 18 - Asteroid 12790 Cernan Closest Approach To Earth (1.485 AU)
    Sep 18 - Asteroid 19204 Joshuatree Closest Approach To Earth (1.526 AU)
    Sep 18 - Asteroid 73079 Davidbaltimore Closest Approach To Earth (1.530 AU)
    Sep 18 - Asteroid 9523 Torino Closest Approach To Earth (1.764 AU)
    Sep 18 - Asteroid 2688 Halley Closest Approach To Earth (2.009 AU)
    Sep 18 - Asteroid 15417 Babylon Closest Approach To Earth (2.918 AU)
    Sep 18 - Edwin McMillan's 110th Birthday (1907)
    Sep 18 - Adrien-Marie Legendre's 265th Birthday (1752)
    Sep 19 - Comet 5D/Brorsen Perihelion (0.529 AU)
    Sep 19 - Comet 95P/Chiron At Opposition (17.579 AU)
    Sep 19 - Asteroid 4444 Escher Closest Approach To Earth (1.142 AU)
    Sep 19 - Asteroid 3763 Quianxuesen Closest Approach To Earth (1.478 AU)
    Sep 19 - Asteroid 4037 Ikeya Closest Approach To Earth (1.746 AU)
    Sep 19 - Yoshio Kushida's 60th Birthday (1957)
    Sep 19 - Guy Consolmagno's 65th Birthday (1952)
    Sep 20 - Comet C/2016 N4 (MASTER) Perihelion (3.228 AU)
    Sep 20 - Apollo Asteroid 2008 CK70 Near-Earth Flyby (0.058 AU)
    Sep 20 - Asteroid 1134 Kepler Closest Approach To Earth (0.506 AU)
    Sep 20 - Asteroid 3341 Hartmann Closest Approach To Earth (1.335 AU)
    Sep 20 - Asteroid 4148 McCartney Closest Approach To Earth (1.462 AU)
    Sep 20 - Asteroid 31319 Vespucci Closest Approach To Earth (2.394 AU)
    * Sep 21 - Joint Polar Satellite System 1 (JPSS 1)/Buccaneer RMM/MiRaTA/EagleSat/CP 7 (DAVE)/Fox 1B (RadFxSat)/MakerSat 0 Delta 2 Launch
    Sep 21 - Comet 73P-X/Schwassmann-Wachmann Closest Approach To Earth (1.375 AU)
    Sep 21 - Comet 73P-L/Schwassmann-Wachmann Closest Approach To Earth (1.379 AU)
    Sep 21 - Comet 73P-AN/Schwassmann-Wachmann Closest Approach To Earth (1.381 AU)
    Sep 21 - Comet 73P-AH/Schwassmann-Wachmann Closest Approach To Earth (1.398 AU)
    Sep 21 - Apollo Asteroid 2015 FC341 Near-Earth Flyby (0.082 AU)
    Sep 21 - Atira Asteroid 434326 (2004 JG6) Closest Approach To Earth (0.696 AU)
    Sep 21 - Atira Asteroid 164294 (2004 XZ130) Closest Approach To Earth (1.246 AU)
    Sep 21 - Asteroid 8626 Melissarauch Closest Approach To Earth (2.030 AU)
    Sep 21 - Asteroid 8624 Kaleycuoco Closest Approach To Earth (2.201 AU)
    Sep 21 - Asteroid 52422 LPL Closest Approach To Earth (2.631 AU)
    Sep 22 - Autumnal Equinox, 20:02 UT
    Sep 22 - Comet P/2000 S1 (Skiff) Closest Approach To Earth (1.669 AU)
    Sep 22 - Apollo Asteroid 2015 TC24 Near-Earth Flyby (0.070 AU)
    Sep 22 - Asteroid 3749 Balam (2 Moons) Closest Approach To Earth (1.311 AU)
    Sep 23 - Comet C/2015 ER61 (PANSTARRS) Closest Approach To Earth (1.664 AU)
    Sep 23 - Comet P/2001 T3 (NEAT) Closest Approach To Earth (2.387 AU)
    Sep 23 - Asteroid 85185 Lederman Closest Approach To Earth (0.895 AU)
    Sep 23 - Kuiper Belt Object 2010 RE64 At Opposition (51.283 AU)
    Sep 23 - 55th Anniversary (1962), "The Jetsons" TV Debut
    Sep 24 - Comet 73P-Z/Schwassmann-Wachmann Closest Approach To Earth (1.459 AU)
    Sep 24 - Comet 73P-AO/Schwassmann-Wachmann Closest Approach To Earth (1.463 AU)
    Sep 24 - Comet 237P/LINEAR Closest Approach To Earth (2.208 AU)
    Sep 24 - Comet 25D/Neujmin At Opposition (3.564 AU)
    Sep 24 - Asteroid 13752 Grantstokes Closest Approach To Earth (1.088 AU)
    Sep 24 - Asteroid 3174 Alcock Closest Approach To Earth (1.956 AU)
    Sep 24 - Kuiper Belt Object 120347 Salacia At Opposition (43.815 AU)
    Sep 24 - 165th Anniversary (1852), Henri Giffard Makes 1st Powered and Controlled Flight
    Sep 25 - Spektr-RG Zenit-3F Launch
    Sep 25 - Comet 213P/Van Ness Perihelion (1.983 AU)
    Sep 25 - Comet 213P-B/Van Ness Perihelion (1.983 AU)
    Sep 25 - Comet 89P/Russell Closest Approach To Earth (1.988 AU)
    Sep 25 - Comet P/2015 M2 (PANSTARRS) Closest Approach To Earth (5.308 AU)
    Sep 25 - Asteroid 10797 Guatemala Closest Approach To Earth (1.539 AU)
    Sep 25 - Asteroid 2266 Tchaikovsky Closest Approach To Earth (2.195 AU)
    Sep 25 - 20th Anniversary (1997), STS-86 Launch (Space Shuttle, Atlantis, Mir
    Space Station)
    Sep 25 - 25th Anniversary (1992), Mars Observer Launch
    Sep 26 - Comet 73P-R/Schwassmann-Wachmann Closest Approach To Earth (1.500 AU)
    Sep 26 - Comet C/2016 Q4 (Kowalski) Closest Approach To Earth (6.117 AU)
    Sep 26 - Comet C/2016 Q4 (Kowalski) At Opposition (6.117 AU)
    Sep 26 - Apollo Asteroid 5189 (1990 UQ) Near-Earth Flyby (0.061 AU)
    Sep 26 - Amor Asteroid 3757 Anagolay Closest Approach To Earth (1.094 AU)
    Sep 26 - Harrison Brown's 100th Birthday (1917)
    Sep 27 - Comet C/2017 E1 (Borisov) Closest Approach To Earth (2.140 AU)
    Sep 27 - Comet 73P-M/Schwassmann-Wachmann Closest Approach To Earth (1.528 AU)
    Sep 27 - Comet 73P-AD/Schwassmann-Wachmann Closest Approach To Earth (1.535 AU)
    Sep 27 - Dwarf Planet Ceres Occults 2UCAC 40015030 (12.2 Magnitude Star)
    Sep 27 - Apollo Asteroid 469219 (2016 HO3) Closest Approach To Earth (0.158 AU)
    Sep 27 - Asteroid 90022 Apache Point Closest Approach To Earth (1.573 AU)
    Sep 27 - Centaur Object 2015 JH1 At Opposition (4.699 AU)
    Sep 27 - Kuiper Belt Object 308933 (2006 SQ372) At Opposition (26.842 AU)
    Sep 27 - 10th Anniversary (2007), Dawn Launch (Asteroid Orbiter Mission)
    Sep 27 - 20th Anniversary (1997), Last Transmission From Mars Pathfinder
    Sep 28 - Comet 73P-E/Schwassmann-Wachmann Closest Approach To Earth (1.542 AU)
    Sep 28 - Apollo Asteroid 2017 GM6 Near-Earth Flyby (0.080 AU)
    Sep 28 - Asteroid 71885 Denning Closest Approach To Earth (1.273 AU)
    Sep 28 - Asteroid 15783 Briancox Closest Approach To Earth (2.027 AU)
    Sep 28 - 55th Anniversary (1962), Alouette 1 Launch (Canada's 1st Satellite)
    Sep 29 - Comet 73P-BS/Schwassmann-Wachmann At Opposition (0.717 AU)
    Sep 29 - Comet 73P-H/Schwassmann-Wachmann Closest Approach To Earth (1.589 AU)
    Sep 29 - Comet P/2010 D1 (WISE) At Opposition (1.738 AU)
    Sep 29 - Comet P/2006 D1 (Hill) At Opposition (3.246 AU)
    Sep 29 - Comet 299P/Catalina-PANSTARRS At Opposition (3.950 AU)
    Sep 29 - Comet P/2015 M2 (PANSTARRS) At Opposition (5.311 AU)
    Sep 29 - Apollo Asteroid 1989 VB Near-Earth Flyby (0.020 AU)
    Sep 29 - Asteroid 4716 Urey Closest Approach To Earth (2.339 AU)
    Sep 29 - Plutino 469372 (2001 QF298) At Opposition (42.446 AU)
    Sep 29 - 40th Anniversary (1977), Salyut 6 Space Station Launch
    Sep 29 - Plutino 469372 (2001 QF298) At Opposition (42.446 AU)
    Sep 30 - Astronomy Day
    Sep 30 - STP-2 Falcon Heavy Launch
    Sep 30 - SES-14/GOLD Falcon 9 Launch
    Sep 30 - Comet 263P/Gibbs Perihelion (1.263 AU)
    Sep 30 - Comet 73P-B/Schwassmann-Wachmann Closest Approach To Earth (1.596 AU)
    Sep 30 - Comet 73P-K/Schwassmann-Wachmann Closest Approach To Earth (1.598 AU)
    Sep 30 - Comet 73P-G/Schwassmann-Wachmann Closest Approach To Earth (1.615 AU)
    Sep 30 - Comet 73P/Schwassmann-Wachmann Closest Approach To Earth (1.619 AU)
    Sep 30 - Comet 73P-C/Schwassmann-Wachmann Closest Approach To Earth (1.620 AU)
    Sep 30 - Comet 73P-BT/Schwassmann-Wachmann Closest Approach To Earth (1.620 AU)
    Sep 30 - Comet 9P/Tempel Closest Approach To Earth (2.560 AU)
    Sep 30 - Comet P/2008 CL94 (Lemmon) At Opposition (5.296 AU)
    Sep 30 - Aten Asteroid 2015 SO2 Near-Earth Flyby (0.066 AU)
    Sep 30 - Apollo Asteroid 2329 Orthos Closest Approach To Earth (0.158 AU)
    Sep 30 - Asteroid 6735 Madhatter Closest Approach To Earth (1.084 AU)
    Sep 30 - Asteroid 6296 Cleveland Closest Approach To Earth (1.168 AU)
    Sep 30 - Asteroid 327695 Yokoono Closest Approach To Earth (1.578 AU)

    October 2017
    Oct ?? - SAOCOM 1A/ITASAT 1 Falcon 9 Launch
    Oct ?? - Iridium Next 31-40 Falcon 9 Launch
    Oct ?? - Zhang Jiaxiang's 85th Birthday (1932)
    Oct ?? - AsiaSat 9 Proton-M/Briz-M P4 Launch
    * Oct ?? - BeiDou-3 (M5 & M6) CZ-3C/YZ-1 Launch
    Oct 01 - NROL-52/Quasar 21 Atlas 5 Launch
    Oct 01 - Comet 73P-AI/Schwassmann-Wachmann At Opposition (0.775 AU)
    Oct 01 - Comet P/2010 P4 (WISE) Closest Approach To Earth (0.930 AU)
    Oct 01 - Comet 73P-AV/Schwassmann-Wachmann Closest Approach To Earth (1.638 AU)
    Oct 01 - Dwarf Planet Ceres Occults TYC 1928-00279-1 (11.0 Magnitude Star)
    Oct 01 - Aten Asteroid 2004 QA22 Near-Earth Flyby (0.065 AU)
    Oct 01 - Apollo Asteroid 2015 XE Near-Earth Flyby (0.083 AU)
    Oct 01 - Kuiper Belt Object 2015 RR245 At Opposition (62.481 AU)
    Oct 01 - 170th Anniversary (1847), Maria Mitchell Discovers Comet C/1847 T1
    Oct 02 - Comet P/2013 YG46 (Spacewatch) Closest Approach To Earth (1.679 AU)
    Oct 02 - Comet P/2010 D1 (WISE) Closest Approach To Earth (1.737 AU)
    Oct 02 - Comet 60P/Tsuchinshan Closest Approach To Earth (2.735 AU)
    Oct 02 - Comet P/2008 CL94 (Lemmon) Closest Approach To Earth (5.296 AU)
    Oct 02 - Asteroid 763 Cupido Closest Approach To Earth (0.877 AU)
    Oct 02 - Asteroid 36800 Katarinawitt Closest Approach To Earth (1.085 AU)
    Oct 02 - Asteroid 6487 Tonyspear Closest Approach To Earth (1.288 AU)
    Oct 02 - Asteroid 19620 Auckland Closest Approach To Earth (1.690 AU)
    Oct 02 - Asteroid 14965 Bonk Closest Approach To Earth (1.793 AU)
    Oct 02 - Frank Malina's 105th Birthday (1912)
    Oct 03 - Moon Occults Neptune
    Oct 03 - Comet P/2000 S1 (Skiff) At Opposition (1.685 AU)
    Oct 03 - Comet 73P-AK/Schwassmann-Wachmann Closest Approach To Earth (1.703 AU)
    Oct 03 - Comet 73P-AU/Schwassmann-Wachmann Closest Approach To Earth (1.705 AU)
    Oct 03 - Comet 240P/NEAT Closest Approach To Earth (1.879 AU)
    Oct 03 - Asteroid 10111 Frensel Closest Approach To Earth (1.621 AU)
    Oct 03 - Asteroid 171381 Taipei Closest Approach To Earth (1.769 AU)
    Oct 03 - Binary Asteroid 90 Antiope Closest Approach To Earth (1.835 AU)
    Oct 03 - 55th Anniversary (1962), Sigma 7 Launch (Walter Schirra)
    Oct 03 - 55th Anniversary (1962), Zagami Meteorite Fall (Mars Meteorite)
    Oct 03 - 75th Anniversary (1942), 1st Successful Test Launch of the German A-4 Rocket (V-2)
    Oct 04 - Aten Asteroid 2004 TD10 Near-Earth Flyby (0.085 AU)
    Oct 04 - Apollo Asteroid 4197 Morpheus Closest Approach To Earth (0.474 AU)
    Oct 04 - Asteroid 9781 Jubjubbird Closest Approach To Earth (1.273 AU)
    Oct 04 - Christen Longomontanus' 455th Birthday (1562)
    Oct 04 - 10th Anniversary (2007), Kaguya (Selene 1) Moon Orbit Insertion,
    Oct 04 - 60th Anniversary (1957), Sputnik 1 Launch
    Oct 04-10 - World Space Week
    Oct 05 - Venus Passes 0.2 Degrees From Mars
    Oct 05 - Aten Asteroid 5381 Sekmet Closest Approach To Earth (0.649 AU)
    Oct 05 - Atira Asteroid 2012 VE46 Closest Approach To Earth (0.791 AU)
    Oct 05 - Asteroid 17058 Rocknroll Closest Approach To Earth (1.547 AU)
    Oct 05 - Asteroid 671 Carnegia Closest Approach To Earth (2.044 AU)
    Oct 05 - European Southern Observatory's (ESO) 55th Birthday (1962)
    Oct 05 - Robert Goddard's 135th Birthday (1882)
    Oct 05 - Giorgio Abetti's 135th Birthday (1882)
    Oct 06 - Comet 73P-BQ/Schwassmann-Wachmann Closest Approach To Earth (1.772 AU)
    Oct 06 - Comet 73P-N/Schwassmann-Wachmann Closest Approach To Earth (1.789 AU)
    Oct 06 - Comet 124P/Mrkos At Opposition (3.915 AU)
    Oct 06 - Asteroid 277 Elvira Occults HIP 116323 (5.9 Magnitude Star)
    Oct 06 - Apollo Asteroid 2011 TB4 Near-Earth Flyby (0.065 AU)
    Oct 06 - Apollo Asteroid 2017 GS6 Near-Earth Flyby (0.078 AU)
    Oct 06 - Asteroid 916 America Closest Approach To Earth (0.830 AU)
    Oct 06 - Asteroid 35978 Arlington Closest Approach To Earth (1.459 AU)
    Oct 06 - Asteroid 9325 Stonehenge Closest Approach To Earth (1.552 AU)
    Oct 06 - Asteroid 15550 Sydney Closest Approach To Earth (1.672 AU)
    Oct 06 - Nevil Maskelyne's 285th Birthday (1732)
    Oct 07 - Comet 73P-W/Schwassmann-Wachmann At Opposition (0.928 AU)
    Oct 07 - Comet 73P-AX/Schwassmann-Wachmann Closest Approach To Earth (1.815 AU)
    Oct 07 - Comet P/2016 P1 (PANSTARRS) At Opposition (3.049 AU)
    Oct 07 - Asteroid 3 Juno Occults 2UCAC 27345728 (12.2 Magnitude Star)
    Oct 07 - Asteroid 293909 Matterhorn Closest Approach To Earth (1.853 AU)
    Oct 07 - Kuiper Belt Object 2008 ST291 At Opposition (59.575 AU)
    Oct 07 - 15th Anniversary (2002), STS-112 Launch (Space Shuttle Atlantis, International Space Station)
    Oct 07 - 15th Anniversary (2002), Founding of the B612 Foundation
    Oct 07 - Donald Machholz's 65th Birthday (1952)
    Oct 07 - Franz Suess' 150th Birthday (1867)
    Oct 08 - Asteroid 134346 Pinatubo Closest Approach To Earth (0.924 AU)
    Oct 08 - Asteroid 5819 Lauretta Closest Approach To Earth (1.285 AU)
    Oct 08 - Asteroid 56678 Alicewessen Closest Approach To Earth (1.740 AU)
    Oct 08 - 25th Anniversary (1992), Pioneer Venus' Burnup in Venus' Atmosphere
    Oct 09 - Draconids Meteor Shower Peak
    Oct 09 - Moon Occults Aldebaran
    Oct 09 - Comet 73P-BO/Schwassmann-Wachmann Closest Approach To Earth (1.862 AU)
    Oct 09 - Comet 73P-BN/Schwassmann-Wachmann Closest Approach To Earth (1.872 AU)
    Oct 09 - Comet 232P/Hill At Opposition (3.118 AU)
    Oct 09 - Asteroid 300221 Brucebills Closest Approach To Earth (1.682 AU)
    Oct 09 - Asteroid 51825 Davidbrown Closest Approach To Earth (1.807 AU)
    Oct 09 - Asteroid 230975 Rogerfederer Closest Approach To Earth (1.881 AU)
    Oct 09 - Asteroid 15371 Steward Closest Approach To Earth (1.923 AU)
    Oct 09 - Asteroid 16046 Gregnorman Closest Approach To Earth (2.407 AU)
    Oct 09 - 25th Anniversary (1992), Peekskill Meteorite Fall (Hit Car in New York)
    Oct 09 - Yury Usachev's 60th Birthday (1957)
    Oct 10 - Comet 73P-BK/Schwassmann-Wachmann Closest Approach To Earth (1.895 AU)
    Oct 10 - Comet 73P-J/Schwassmann-Wachmann Closest Approach To Earth (1.909 AU)
    Oct 10 - Comet 89P/Russell At Opposition (2.018 AU)
    Oct 10 - Asteroid 16897 (1998 DH10) Occults HIP 20804 (5.9 Magnitude Star)
    Oct 10 - Apollo Asteroid 2014 DQ Near-Earth Flyby (0.082 AU)
    Oct 10 - Asteroid 30857 Parsec Closest Approach To Earth (0.999 AU)
    Oct 10 - Asteroid 2001 Einstein Closest Approach To Earth (1.146 AU)
    Oct 10 - Asteroid 264020 Stuttgart Closest Approach To Earth (1.494 AU)
    Oct 10 - Asteroid 8623 Johnnygalecki Closest Approach To Earth (2.473 AU)
    Oct 10 - 50th Anniversary (1967), Enactment of the Outer Space Treaty
    Oct 10 - Michael Disney's 80th Birthday (1937)
    Oct 11 - AEHF 4 Atlas 5 Launch
    Oct 11 - Comet P/2010 P4 (WISE) At Opposition (0.942 AU)
    Oct 11 - Comet 47P/Ashbrook-Jackson Closest Approach To Earth (1.920 AU)
    Oct 11 - Comet 73P-AB/Schwassmann-Wachmann Closest Approach To Earth (1.945 AU)
    Oct 11 - Comet 237P/LINEAR At Opposition (2.247 AU)
    Oct 11 - Apollo Asteroid 2007 DM41 Near-Earth Flyby (0.090 AU)
    Oct 11 - Asteroid 8208 Volta Closest Approach To Earth (1.275 AU)
    Oct 11 - Asteroid 432971 Loving Closest Approach To Earth (1.552 AU)
    Oct 11 - Kuiper Belt Object 303775 (2005 QU182) At Opposition (51.333 AU)
    Oct 11 - 160th Anniversary (1857), Ohaba Meteorite Fall (Fell in Fruit Garden
    in Romania)
    Oct 12 - Progress MS-7 Soyuz-2.1a Launch (International Space Station 68P)
    Oct 12 - Comet 73P-BJ/Schwassmann-Wachmann Closest Approach To Earth (1.959 AU)
    Oct 12 - Comet C/2015 T2 (PANSTARRS) Closest Approach To Earth (6.193 AU)
    Oct 12 - Apollo Asteroid 2012 TC4 Near-Earth Flyby (0.0004 AU)
    Oct 12 - Apollo Asteroid 11500 Tomaiyowit Closest Approach To Earth (0.421 AU)
    Oct 12 - Apollo Asteroid 4183 Cuno Closest Approach To Earth (1.473 AU)
    Oct 12 - Jake Garn's 85th Birthday (1932)
    Oct 13 - Comet 73P-AE/Schwassmann-Wachmann At Opposition (1.119 AU)
    Oct 13 - Comet P/2004 T1 (LINEAR-NEAT) Perihelion (1.716 AU)
    Oct 13 - Aten Asteroid 2005 TE49 Near-Earth Flyby (0.022 AU)
    Oct 13 - Apollo Asteroid 2014 UR116 Near-Earth Flyby (0.072 AU)
    Oct 13 - Atira Asteroid 1998 DK36 Closest Approach To Earth (1.262 AU)
    Oct 13 - Asteroid 5256 Farquhar Closest Approach To Earth (1.366 AU)
    Oct 13 - Asteroid 6135 Billowen Closest Approach To Earth (1.768 AU)
    Oct 13 - Kuiper Belt Object 19308 (1996 TO66) At Opposition (46.380 AU)
    Oct 14 - Comet 73P-AM/Schwassmann-Wachmann Closest Approach To Earth (2.025 AU)
    Oct 14 - Comet 263P/Gibbs Closest Approach To Earth (2.070 AU)
    Oct 14 - Apollo Asteroid 2016 UO41 Near-Earth Flyby (0.055 AU)
    Oct 14 - Asteroid 14061 Nagincox Closest Approach To Earth (1.130 AU)
    Oct 14 - Asteroid 7328 Casanova Closest Approach To Earth (1.199 AU)
    Oct 14 - Asteroid 12574 LONEOS Closest Approach To Earth (1.638 AU)
    Oct 14 - Asteroid 9725 Wainscoat Closest Approach To Earth (1.671 AU)
    Oct 14 - Asteroid 1618 Dawn Closest Approach To Earth (1.883 AU)
    Oct 14 - 70th Anniversary (1947), Chuck Yeager Breaks Sound Barrier
    Oct 15 - Moon Occults Regulus
    Oct 15 - Comet 9P/Tempel At Opposition (2.591 AU)
    Oct 15 - Apollo Asteroid 2013 UM9 Near-Earth Flyby (0.044 AU)
    Oct 15 - Apollo Asteroid 2012 EN5 Near-Earth Flyby (0.091 AU)
    Oct 15 - Atira Asteroid 2013 JX28 Closest Approach To Earth (0.733 AU)
    Oct 15 - Asteroid 136 Austria Closest Approach To Earth (1.206 AU)
    Oct 15 - Asteroid 32096 Puckett Closest Approach To Earth (1.394 AU)
    Oct 15 - Asteroid 5720 Halweaver Closest Approach To Earth (1.528 AU
    Oct 15 - 20th Anniversary (1997), Cassini Launch (Saturn Orbiter)
    Oct 15 - 45th Anniversary (1972), Valera Meteorite Fall (Hit Cow in Venezuela)
    Oct 16 - Progress MS-8 Soyuz-2.1a Launch (International Space Station 69P)
    Oct 16 - Comet 294P/LINEAR At Opposition (3.915 AU)
    Oct 16 - Comet C/2015 T2 (PANSTARRS) At Opposition (6.196 AU)
    Oct 16 - Asteroid 224 Oceana Closest Approach To Earth (1.681 AU)
    Oct 16 - Asteroid 294727 Dennisritchie Closest Approach To Earth (2.223 AU)
    Oct 17 - Moon Occults Asteroid 21 Lutetia
    Oct 17 - Comet 73P-BL/Schwassmann-Wachmann At Opposition (1.217 AU)
    Oct 17 - Comet 73P-AQ/Schwassmann-Wachmann At Opposition (1.284 AU)
    Oct 17 - Comet 47P/Ashbrook-Jackson At Opposition (1.925 AU)
    Oct 17 - Comet 340P/Boattini Closest Approach To Earth (2.496 AU)
    Oct 17 - Comet 65P/Gunn Perihelion (2.910 AU)
    Oct 17 - Amor Asteroid 2011 PT Near-Earth Flyby (0.058 AU)
    Oct 17 - Asteroid 4511 Rembrandt Closest Approach To Earth (1.361 AU)
    Oct 17 - Asteroid 7554 Johnspencer Closest Approach To Earth (2.759 AU)
    Oct 17 - Dwarf Planet 136199 Eris At Opposition (95.195 AU)
    Oct 17 - 5th Anniversary (2012), Novato Meteorite Fall in California (Hit House)
    Oct 18 - 50th Anniversary (1967), Venera 4, Venus Landing
    Oct 18 - Mercury Passes 1.0 Degrees from Jupiter
    Oct 18 - Comet 73P-AR/Schwassmann-Wachmann At Opposition (1.302 AU)
    Oct 18 - Comet 73P-AG/Schwassmann-Wachmann At Opposition (1.303 AU)
    Oct 18 - Comet 73P-U/Schwassmann-Wachmann Closest Approach To Earth (2.169 AU)
    Oct 18 - Comet P/2015 F1 (PANSTARRS) At Opposition (3.372 AU)
    Oct 18 - Comet P/2016 P2 (PANSTARRS) At Opposition (3.490 AU)
    Oct 18 - Aten Asteroid 2006 TU7 Near-Earth Flyby (0.048 AU)
    Oct 18 - Kuiper Belt Object 202421 (2005 UQ513) At Opposition (47.230 AU)
    Oct 18 - 40th Anniversary (1977), Charles Kowal's Discovery of Chiron
    Oct 18 - Pascual Jordan's 115th Birthday (1902)
    Oct 18 - 120th Anniversary (1897), Delhi Meteorite Fall in India
    Oct 18 - Carl Kiess' 130th Birthday (1887)
    Oct 18 - 170th Anniversary (1847), John Hind's Discovery of Asteroid 8 Flora
    Oct 19 - 50th Anniversary (1967), Mariner 5, Venus Flyby
    Oct 19 - Uranus At Opposition
    Oct 19 - Comet 73P-P/Schwassmann-Wachmann At Opposition (1.342 AU)
    Oct 19 - Comet C/2015 V1 (PANSTARRS) At Opposition (3.308 AU)
    Oct 19 - Asteroid 8489 Boulder Closest Approach To Earth (2.432 AU)
    Oct 20 - Comet 337P/WISE Closest Approach To Earth (2.766 AU)
    Oct 20 - Comet C/2015 V1 (PANSTARRS) Closest Approach To Earth (3.308 AU)
    Oct 20 - Comet 228P/LINEAR At Opposition (3.438 AU)
    Oct 20 - Aten Asteroid 2014 UR Near-Earth Flyby (0.064 AU)
    Oct 20 - Asteroid 11836 Eileen Closest Approach To Earth (0.778 AU)
    Oct 20 - Asteroid 4446 Carolyn Closest Approach To Earth (2.678 AU)
    Oct 20 - Christopher Wren's 385th Birthday (1632)
    Oct 21 - Orionids Meteor Shower Peak
    Oct 21 - Comet 73P-AC/Schwassmann-Wachmann At Opposition (1.395 AU)
    Oct 21 - Comet P/2013 YG46 (Spacewatch) At Opposition (1.728 AU)
    Oct 21 - Comet 159P/LONEOS At Opposition (2.844 AU)
    Oct 21 - Comet 258P/PANSTARRS At Opposition (3.803 AU)
    Oct 21 - Asteroid 69263 Big Ben Closest Approach To Earth (1.152 AU)
    Oct 21 - Asteroid 1584 Fuji Closest Approach To Earth (1.621 AU)
    Oct 21 - Asteroid 30439 Moe Closest Approach To Earth (1.657 AU)
    Oct 21 - Asteroid 5661 Hildebrand Closest Approach To Earth (2.606 AU)
    Oct 21 - Yerkes Observatory's 120th Birthday (1897)
    Oct 22 - Comet P/1998 VS24 (LINEAR) At Opposition (2.470 AU)
    Oct 22 - Dwarf Planet Ceres Occults TYC 1943-00104-1 (12.1 Magnitude Star)
    Oct 22 - Apollo Asteroid 171576 (1999 VP11) Near-Earth Flyby (0.015 AU)
    Oct 22 - Apollo Asteroid 2010 VT11 Near-Earth Flyby (0.092 AU)
    Oct 22 - Asteroid 4701 Milani Closest Approach To Earth (1.333 AU)
    Oct 22 - Asteroid 227 Philosophia Closest Approach To Earth (2.730 AU)
    Oct 22 - Kuiper Belt Object 308379 (2005 RS43) At Opposition (42.562 AU)
    Oct 22 - 25th Anniversary (1992), STS-52 Launch (Space Shuttle Columbia, LAGEOS II)
    Oct 23 - Comet 96P/Machholz Closest Approach To Earth (0.879 AU)
    Oct 23 - Comet P/1998 VS24 (LINEAR) Closest Approach To Earth (2.470 AU)
    Oct 23 - Apollo Asteroid 2008 GH110 Near-Earth Flyby (0.087 AU)
    Oct 23 - Asteroid 8992 Magnanimity Closest Approach To Earth (1.190 AU)
    Oct 23 - Aten Asteroid 3362 Khufu Closest Approach To Earth (1.281 AU)
    Oct 23 - Asteroid 13606 Bean Closest Approach To Earth (1.593 AU)
    Oct 23 - Asteroid 15092 Beegees Closest Approach To Earth (2.018 AU)
    Oct 23 - Centaur Object 2015 KJ153 At Opposition (4.876 AU)
    Oct 23 - Neptune Trojan 2011 SO277 At Opposition (29.507 AU)
    Oct 23 - 10th Anniversary (2007), STS-120 Launch (Space Shuttle Discovery, International Space Station)
    Oct 24 - Comet 73P-X/Schwassmann-Wachmann At Opposition (1.507 AU)
    Oct 24 - Comet 73P-L/Schwassmann-Wachmann At Opposition (1.510 AU)
    Oct 24 - Comet 73P-AN/Schwassmann-Wachmann At Opposition (1.511 AU)
    Oct 24 - Comet 73P-AH/Schwassmann-Wachmann At Opposition (1.526 AU)
    Oct 24 - Comet 228P/LINEAR Closest Approach To Earth (3.437 AU)
    Oct 24 - Comet 53P/Van Biesbroeck At Opposition (3.531 AU)
    Oct 24 - Comet C/2016 U1 (NEOWISE) At Opposition (3.658 AU)
    Oct 24 - Aten Asteroid 2016 GK135 Near-Earth Flyby (0.077 AU)
    Oct 24 - Aten Asteroid 2008 TC4 Near-Earth Flyby (0.086 AU)
    Oct 24 - Asteroid 7041 Nantucket Closest Approach To Earth (0.959 AU)
    Oct 24 - Asteroid 3905 Doppler Closest Approach To Earth (1.067 AU)
    Oct 24 - Asteroid 7644 Cslewis Closest Approach To Earth (1.288 AU)
    Oct 24 - Apollo Asteroid 2201 Oljato Closest Approach To Earth (2.063 AU)
    Oct 24 - Asteroid 10379 Lake Placid Closest Approach To Earth (2.593 AU)
    Oct 25 - Comet 73P-Z/Schwassmann-Wachmann At Opposition (1.578 AU)
    Oct 25 - Comet 73P-AO/Schwassmann-Wachmann At Opposition (1.580 AU)
    Oct 25 - Comet 73P-AT/Schwassmann-Wachmann Closest Approach To Earth (2.437 AU)
    Oct 25 - Aten Asteroid 2013 UR5 Near-Earth Flyby (0.085 AU)
    Oct 25 - Apollo Asteroid 2017 FT102 Near-Earth Flyby (0.100 AU)
    Oct 25 - Asteroid 9766 Bradbury Closest Approach To Earth (1.414 AU)
    Oct 25 - Asteroid 4547 Massachusetts Closest Approach To Earth (1.465 AU)
    Oct 25 - Amor Asteroid 1943 Anteros Closest Approach To Earth (2.038 AU)
    Oct 25 - Asteroid 2039 Payne-Gaposchkin Closest Approach To Earth (2.267 AU)
    Oct 25 - Kuiper Belt Object 55636 (2002 TX300) At Opposition (41.567 AU)
    Oct 25 - Henry Russell's 140th Birthday (1877)
    Oct 26 - Comet P/2004 T1 (LINEAR-NEAT) Closest Approach To Earth (0.731 AU)
    Oct 26 - Comet 73P-R/Schwassmann-Wachmann At Opposition (1.614 AU)
    Oct 26 - Comet 340P/Boattini At Opposition (2.507 AU)
    Oct 26 - Comet 159P/LONEOS Closest Approach To Earth (2.840 AU)
    Oct 26 - Asteroid 4416 Ramses Closest Approach To Earth (0.813 AU)
    Oct 26 - Asteroid 5725 Nordlingen Closest Approach To Earth (1.737 AU)
    Oct 26 - Asteroid 7100 Martin Luther Closest Approach To Earth (1.806 AU)
    Oct 26 - Asteroid 4772 Frankdrake Closest Approach To Earth (1.951 AU)
    Oct 26 - Asteroid 8721 AMOS Closest Approach To Earth (2.825 AU)
    Oct 26 - Gaetano Crocco's 140th Birthday (1877)
    Oct 27 - Comet 73P-M/Schwassmann-Wachmann At Opposition (1.643 AU)
    Oct 27 - Comet 73P-AD/Schwassmann-Wachmann At Opposition (1.649 AU)
    Oct 27 - Comet 73P-E/Schwassmann-Wachmann At Opposition (1.654 AU)
    Oct 27 - Comet 175P/Hergenrother At Opposition (3.367 AU)
    Oct 27 - Asteroid 1336 Zeelandia Occults HIP 36152 (6.5 Magnitude Star)
    Oct 27 - Asteroid 3414 Champollion Closest Approach To Earth (1.054 AU)
    Oct 27 - Asteroid 2999 Dante Closest Approach To Earth (1.231 AU)
    Oct 27 - Asteroid 7028 Tachikawa Closest Approach To Earth (1.793 AU)
    Oct 27 - Asteroid 30440 Larry Closest Approach To Earth (2.509 AU)
    Oct 27 - Neptune Trojan 2001 QR322 At Opposition (29.099 AU)
    Oct 28 - Comet 96P/Machholz Perihelion (0.124 AU)
    Oct 28 - Comet 73P-H/Schwassmann-Wachmann At Opposition (1.696 AU)
    Oct 28 - Comet 73P-B/Schwassmann-Wachmann At Opposition (1.702 AU)
    Oct 28 - Comet 73P-K/Schwassmann-Wachmann At Opposition (1.703 AU)
    Oct 28 - Comet 73P-BF/Schwassmann-Wachmann Closest Approach To Earth (2.557 AU)
    Oct 28 - Comet 135P/Shoemaker-Levy At Opposition (3.811 AU)
    Oct 28 - Asteroid 12773 Lyman Closest Approach To Earth (1.492 AU)
    Oct 28 - Apollo Asteroid 29075 (1950 DA) Closest Approach To Earth (1.578 AU)
    Oct 28 - 80th Anniversary (1937), Karl Reinmuth's Discovery of Asteroid 69230
    Hermes
    Oct 29 - European Summer Time Ends - Set Clock Back 1 Hour (European Union)
    Oct 29 - Comet 73P-G/Schwassmann-Wachmann Closest Approach To Earth (1.724 AU)
    Oct 29 - Comet 73P/Schwassmann-Wachmann At Opposition (1.727 AU)
    Oct 29 - Comet 73P-C/Schwassmann-Wachmann At Opposition (1.728 AU)
    Oct 29 - Comet 73P-BT/Schwassmann-Wachmann At Opposition (1.729 AU)
    Oct 29 - Comet 73P-AV/Schwassmann-Wachmann At Opposition (1.741 AU)
    Oct 29 - Comet C/2015 T5 (Sheppard-Tholen) Closest Approach To Earth (8.823 AU)
    Oct 29 - Asteroid 73520 Boslough Closest Approach To Earth (1.274 AU)
    Oct 29 - Apollo Asteroid 161989 Cacus Closest Approach To Earth (1.274 AU)
    Oct 29 - Asteroid 17627 Humptydumpty Closest Approach To Earth (1.959 AU)
    Oct 29 - Apollo Asteroid 2212 Hephaistos Closest Approach To Earth (2.646 AU)
    Oct 29 - Centaur Object 49036 Pelion At Opposition (19.848 AU)
    Oct 29 - Centaur Object 20461 Dioretsa At Opposition (28.552 AU)
    Oct 29 - Kuiper Belt Object 15760 (1992 QB1) At Opposition (40.320 AU)
    Oct 30 - Moon Occults Neptune
    Oct 30 - Comet 73P-AK/Schwassmann-Wachmann At Opposition (1.798 AU)
    Oct 30 - Comet 73P-AU/Schwassmann-Wachmann At Opposition (1.801 AU)
    Oct 30 - Comet 73P-BR/Schwassmann-Wachmann Closest Approach To Earth (2.602 AU)
    Oct 30 - Comet 73P-BD/Schwassmann-Wachmann Closest Approach To Earth (2.652 AU)
    Oct 30 - Aten Asteroid 3753 Cruithne Closest Approach To Earth (0.526 AU)
    Oct 30 - Asteroid 4337 Arecibo Closest Approach To Earth (2.564 AU)
    Oct 30 - Neptune Trojan 2014 QO441 At Opposition (32.300 AU)
    Oct 30 - Kuiper Belt Object 42301 (2001 UR163) At Opposition (51.765 AU)
    Oct 31 - Comet P/2016 G1 (PANSTARRS) Closest Approach To Earth (1.492 AU)
    Oct 31 - Comet 73P-BG/Schwassmann-Wachmann Closest Approach To Earth (2.638 AU)
    Oct 31 - Comet 123P/West-Hartley At Opposition (2.739 AU)
    Oct 31 - Apollo Asteroid 2003 UV11 Near-Earth Flyby (0.038 AU)
    Oct 31 - Asteroid 3783 Morris Closest Approach To Earth (1.177 AU)
    Oct 31 - Asteroid 10958 Mont Blanc Closest Approach To Earth (1.315 AU)
    Oct 31 - Asteroid 316020 Linshuhow Closest Approach To Earth (1.532 AU)
    Oct 31 - Asteroid 32605 Lucy Closest Approach To Earth (2.450 AU)

    November 2017
    Nov ?? - Crew Dragon Demo 1 Falcon 9 Launch (Unmanned)
    Nov ?? - Chang'e 5 CZ-5 Launch (China Lunar Sample Return Mission)
    Nov ?? - Dragon v.2 1 (SpX-DM1) Falcon 9 Launch
    Nov ?? - Sentinel 3B Rokot-KM Launch
    Nov ?? - Galileo 19-22 Ariane 5 Launch
    * Nov 01 - CRS-13 Falcon 9 Launch (International Space Station)
    Nov 01 - Comet P/2004 T1 (LINEAR-NEAT) At Opposition (0.735 AU)
    Nov 01 - Comet 73P-BQ/Schwassmann-Wachmann Closest Approach To Earth (1.868 AU)
    Nov 01 - Comet 73P-N/Schwassmann-Wachmann At Opposition (1.881 AU)
    Nov 01 - Comet 219P/LINEAR Closest Approach To Earth (1.883 AU)
    Nov 01 - Asteroid 46610 Besixdouz Closest Approach To Earth (0.883 AU)
    Nov 01 - Asteroid 8003 Kelvin Closest Approach To Earth (1.019 AU)
    Nov 01 - Asteroid 1677 Tycho Brahe Closest Approach To Earth (1.643 AU)
    Nov 01 - Plutino 47171 (1999 TC36) At Opposition (29.598 AU)
    Nov 02 - 100th Anniversary (1917), Mount Wilson 100-inch Telescope First Light
    Nov 02 - Comet 73P-AX/Schwassmann-Wachmann At Opposition (1.908 AU)
    Nov 02 - Comet 73P-V/Schwassmann-Wachmann Closest Approach To Earth (2.665 AU)
    Nov 02 - Comet 73P-BB/Schwassmann-Wachmann Closest Approach To Earth (2.743 AU)
    Nov 02 - Apollo Asteroid 1989 UP Near-Earth Flyby (0.055 AU)
    Nov 02 - Asteroid 85197 Ginkgo Closest Approach To Earth (0.872 AU)
    Nov 02 - Asteroid 2597 Arthur Closest Approach To Earth (1.542 AU)
    Nov 02 - Asteroid 3767 DiMaggio Closest Approach To Earth (1.979 AU)
    Nov 02 - Kuiper Belt Object 2014 UM33 At Opposition (42.855 AU)
    Nov 02 - 15th Anniversary (2002), Stardust, Asteroid 5535 Annefrank Flyby
    Nov 02 - 70th Anniversary (1947), Howard Hughes Flies the Spruce Goose
    Nov 03 - Taurids Meteor Shower Peak
    Nov 03 - Comet 73P-BO/Schwassmann-Wachmann At Opposition (1.954 AU)
    Nov 03 - Comet 73P-BN/Schwassmann-Wachmann At Opposition (1.961 AU)
    Nov 03 - Comet 73P-BK/Schwassmann-Wachmann At Opposition (1.979 AU)
    Nov 03 - Comet 73P-J/Schwassmann-Wachmann At Opposition (1.990 AU)
    * Nov 03 - Comet C/2017 F2 (PANSTARRS) Perihelion (6.960 AU)
    Nov 03 - Aten Asteroid 2009 UZ87 Near-Earth Flyby (0.070 AU)
    Nov 03 - Apollo Asteroid 2015 WA2 Near-Earth Flyby (0.093 AU)
    Nov 03 - Asteroid 22824 von Neumann Closest Approach To Earth (1.062 AU)
    Nov 03 - Asteroid 1655 Comas Sola Closest Approach To Earth (1.248 AU)
    Nov 03 - Asteroid 3192 A'Hearn Closest Approach To Earth (1.472 AU)
    Nov 03 - Asteroid 31664 Randiiwessen Closest Approach To Earth (1.713 AU)
    Nov 03 - Asteroid 3524 Schulz Closest Approach To Earth (1.722 AU)
    Nov 03 - Asteroid 4768 Hartley Closest Approach To Earth (1.804 AU)
    Nov 03 - Apollo Asteroid 4486 Mithra Closest Approach To Earth (2.285 AU)
    Nov 03 - Asteroid 5515 Naderi Closest Approach To Earth (2.289 AU)
    Nov 03 - Kuiper Belt Object 120348 (2004 TY364) At Opposition (38.116 AU)
    Nov 03 - 60th Anniversary (1957), Sputnik 2 Launch (Laika Dog)
    Nov 04 - Comet 73P-AB/Schwassmann-Wachmann At Opposition (2.027 AU)
    Nov 04 - Comet 73P-BJ/Schwassmann-Wachmann At Opposition (2.038 AU)
    Nov 04 - Comet 139P/Vaisala-Oterma Closest Approach To Earth (2.427 AU)
    Nov 04 - Comet 139P/Vaisala-Oterma At Opposition (2.427 AU)
    Nov 04 - Comet 73P-BA/Schwassmann-Wachmann Closest Approach To Earth (2.794 AU)
    Nov 04 - Comet 337P/WISE At Opposition (2.798 AU)
    Nov 04 - Comet 73P-BH/Schwassmann-Wachmann Closest Approach To Earth (2.801 AU)
    Nov 04 - Comet 73P-BI/Schwassmann-Wachmann Closest Approach To Earth (2.802 AU)
    Nov 04 - Comet 73P-BM/Schwassmann-Wachmann Closest Approach To Earth (2.802 AU)
    Nov 04 - Comet 73P-BP/Schwassmann-Wachmann Closest Approach To Earth (2.803 AU)
    Nov 04 - Comet 31P/Schwassmann-Wachmann At Opposition (3.104 AU)
    Nov 04 - Comet C/2015 T5 (Sheppard-Tholen) At Opposition (8.828 AU)
    Nov 04 - Aten Asteroid 365424 (2010 KX7) Near-Earth Flyby (0.096 AU)
    Nov 04 - Asteroid 3430 Bradfield Closest Approach To Earth (1.713 AU)
    Nov 04 - Asteroid 3975 Verdi Closest Approach To Earth (1.802 AU)
    Nov 05 - Daylight Saving - Set Clock Back 1 Hour (United States)
    Nov 05 - Comet 73P-BE/Schwassmann-Wachmann Closest Approach To Earth (2.812 AU)
    Nov 05 - Comet P/2009 L2 (Yang-Gao) At Opposition (4.200 AU)
    Nov 05 - Comet P/2014 E1 (Larson) At Opposition (4.292 AU)
    Nov 05 - Asteroid 1065 Amundsenia Closest Approach To Earth (1.198 AU)
    Nov 05 - Plutino 144897 (2004 UX10) At Opposition (38.267 AU)
    Nov 05 - Kuiper Belt Object 2014 UZ224 At Opposition (90.202 AU)
    Nov 05 - 10th Anniversary (2007), Chang'e 1, Moon Orbit Insertion
    Nov 05 - 15th Anniversary (2002), Galileo, Amalthea 34 Flyby
    Nov 05 - John Alcock's 125th Birthday (1893)
    Nov 06 - Moon Occults Aldebaran
    Nov 06 - Comet 73P-AM/Schwassmann-Wachmann At Opposition (2.101 AU)
    Nov 06 - Apollo Asteroid 2004 GD Near-Earth Flyby (0.057 AU)
    Nov 06 - Apollo Asteroid 1865 Cerberus Closest Approach To Earth (0.397 AU)
    Nov 06 - Asteroid 8621 Jimparsons Closest Approach To Earth (2.223 AU)
    Nov 06 - Neptune Trojan 2006 RJ103 At Opposition (29.260 AU)
    Nov 06 - Kuiper Belt Object 55637 (2002 UX25) At Opposition (39.623 AU)
    Nov 06 - Kuiper Belt Object 84522 (2002 TC302) At Opposition (43.644 AU)
    Nov 06 - 20th Anniverary (1997), Galileo, Europa 11 Flyby
    Nov 07 - 50th Anniversary (1967), Surveyor 6 Launch (Moon Lander)
    Nov 07 - Asteroid 5049 Sherlock Closest Approach To Earth (0.928 AU)
    Nov 07 - Asteroid 4825 Ventura Closest Approach To Earth (0.948 AU)
    Nov 07 - Asteroid 991 McDonalda Closest Approach To Earth (2.093 AU)
    Nov 07 - 525th Anniversary (1492), Ensisheim Meteorite Fall in Austria
    Nov 08 - Comet 73P-U/Schwassmann-Wachmann At Opposition (2.236 AU)
    Nov 08 - Comet 73P-AA/Schwassmann-Wachmann Closest Approach To Earth (2.932 AU)
    Nov 08 - Comet 87P/Bus At Opposition (3.629 AU)
    * Nov 08 - Aten Asteroid 2340 Hathor Closest Approach To Earth (0.532 AU)
    Nov 08 - Asteroid 6560 Pravdo Closest Approach To Earth (1.616 AU)
    Nov 08 - Asteroid 469 Argentina Closest Approach To Earth (2.560 AU)
    Nov 08 - 25th Anniversary (1992), Geotail, 3rd Moon Flyby
    Nov 08 - 35th Anniversary (1982), Wethersfield Meteorite Fall (Hit House)
    Nov 08 - Margaret Rhea Seddon's 70th Birthday (1947)
    Nov 08 - Ben Bova's 85th Birthday (1932)
    Nov 09 - SBIRS GEO-4 Atlas 5 Launch
    Nov 09 - Comet P/2016 G1 (PANSTARRS) At Opposition (1.503 AU)
    Nov 09 - Comet 31P/Schwassmann-Wachmann Closest Approach To Earth (3.105 AU)
    Nov 09 - Asteroid 5392 Parker Closest Approach To Earth (1.512 AU)
    Nov 09 - Apollo Asteroid 6239 Minos Closest Approach To Earth (1.666 AU)
    Nov 09 - Asteroid 3202 Graff Closest Approach To Earth (2.739 AU)
    Nov 09 - 50th Anniversary (1967), 1st Saturn V Launch (Apollo 4)
    Nov 10 - ICESAT 2/ELFIN/IT-SPINS/CHEFsat Delta 2 7420 Launch
    Nov 10 - Asteroid 207563 Toscana Closest Approach To Earth (1.983 AU)
    Nov 10 - Asteroid 10792 Ecuador Closest Approach To Earth (2.013 AU)
    Nov 10 - Asteroid 19482 Harperlee Closest Approach To Earth (2.595 AU)
    Nov 11 - Moon Occults Regulus
    Nov 11 - Comet 183P/Korlevic-Juric Perihelion (3.872 AU)
    Nov 11 - Apollo Asteroid 2005 XB1 Near-Earth Flyby (0.096 AU)
    Nov 11 - Asteroid 3173 McNaught Closest Approach To Earth (1.344 AU)
    Nov 11 - Asteroid 22521 ZZ Top Closest Approach To Earth (1.517 AU)
    Nov 11 - Asteroid 8990 Compassion Closest Approach To Earth (2.428 AU)
    Nov 11 - 35th Anniversary (1982), STS-5 Launch (Space Shuttle Columbia)
    Nov 11 - 445th Anniversary (1572), Tycho Brahe's Observation of SN1572
    Nov 12 - Comet C/2015 ER61 (PANSTARRS) At Opposition (1.905 AU)
    Nov 12 - Comet 123P/West-Hartley Closest Approach To Earth (2.717 AU)
    Nov 12 - Atira Asteroid 2014 FO47 Closest Approach To Earth (0.419 AU)
    Nov 12 - Asteroid 18235 Lynden-Bell Closest Approach To Earth (1.901 AU)
    Nov 12 - Richard Truly's 80th Birthday (1937)
    Nov 13 - Venus Passes 0.3 Degrees from Jupiter
    Nov 13 - Comet 219P/LINEAR At Opposition (1.902 AU)
    Nov 13 - Comet 73P-AT/Schwassmann-Wachmann At Opposition (2.491 AU)
    Nov 13 - Comet C/2017 C2 (PANSTARRS) At Opposition (3.095 AU)
    Nov 13 - Comet 297P/Beshore At Opposition (3.568 AU)
    Nov 13 - Comet 86P/Wild At Opposition (3.768 AU)
    Nov 13 - Apollo Asteroid 326354 (2000 SJ344) Near-Earth Flyby (0.073 AU)
    Nov 13 - Asteroid 4589 McDowell Closest Approach To Earth (1.194 AU)
    Nov 13 - Asteroid 2873 Binzel Closest Approach To Earth (1.540 AU)
    Nov 13 - Asteroid 144296 Steviewonder Closest Approach To Earth (1.682 AU)
    Nov 13 - 10th Anniversary (2007), Rosetta, 2nd Earth Flyby
    Nov 14 - Moon Occults Asteroid 21 Lutetia
    Nov 15 - Comet 73P-BF/Schwassmann-Wachmann At Opposition (2.604 AU)
    Nov 15 - Comet C/2014 C1 (TOTAS) At Opposition (2.693 AU)
    Nov 15 - Comet 302P/Lemmon-PANSTARRS Closest Approach To Earth (3.058 AU)
    Nov 15 - Comet 73P-AJ/Schwassmann-Wachmann At Opposition (3.837 AU)
    Nov 15 - Comet 218P/LINEAR At Opposition (4.021 AU)
    Nov 15 - Asteroid 3154 Grant Closest Approach To Earth (1.573 AU)
    Nov 15 - Asteroid 19535 Rowanatkinson Closest Approach To Earth (1.612 AU)
    Nov 15 - Asteroid 228029 MANIAC Closest Approach To Earth (1.813 AU)
    Nov 15 - Kuiper Belt Object 2012 VP113 At Opposition (82.656 AU)
    Nov 16 - Moon Occults Asteroid 4 Vesta
    Nov 16 - Comet 62P/Tsuchinshan Perihelion (1.384 AU)
    Nov 16 - Comet C/2017 E1 (Borisov) At Opposition (2.398 AU)
    Nov 16 - Comet 73P-BD/Schwassmann-Wachmann At Opposition (2.696 AU)
    Nov 16 - Comet P/2015 J3 (NEOWISE) At Opposition (4.175 AU)
    Nov 16 - Apollo Asteroid 2000 UO30 Near-Earth Flyby (0.074 AU)
    Nov 16 - Apollo Asteroid 2013 TK69 Near-Earth Flyby (0.082 AU)
    Nov 16 - Asteroid 23638 Nagano Closest Approach To Earth (1.300 AU)
    Nov 16 - Asteroid 24997 Petergabriel Closest Approach To Earth (1.418 AU)
    Nov 16 - Asteroid 1288 Santa Closest Approach To Earth (1.809 AU)
    Nov 16 - Asteroid 2919 Dali Closest Approach To Earth (2.421 AU)
    Nov 16 - 40th Anniversary (1977), "Close Encounters of the Third Kind" Released
    Nov 16 - 165th Anniversary (1852), Hermann Goldschmidt's Discovery of Asteroid 21 Lutetia
    Nov 16 - Jean le Rond d'Alembert's 300th Birthday (1717)
    Nov 17 - 50th Anniversary (1967), 1st Successful Lift-Off from Lunar Surface (Surveyor 6)
    Nov 17 - Leonids Meteor Shower Peak
    Nov 17 - Comet 24P/Schaumasse Perihelion (1.206 AU)
    Nov 17 - Comet 73P-BR/Schwassmann-Wachmann At Opposition (2.654 AU)
    Nov 17 - Comet 73P-BG/Schwassmann-Wachmann At Opposition (2.685 AU)
    Nov 17 - Apollo Asteroid 444584 (2006 UK) Near-Earth Flyby (0.022 AU)
    * Nov 17 - Aten Asteroid 136818 Selqet Closest Approach To Earth (0.325 AU)
    Nov 17 - Neptune Trojan 2007 VL305 At Opposition (27.240 AU)
    Nov 17 - Plutino 2003 UZ413 At Opposition (42.874 AU)
    Nov 17 - Henry Gellibrand's 420th Birthday (1597)
    Nov 18 - Comet 73P-BB/Schwassmann-Wachmann At Opposition (2.782 AU)
    Nov 18 - Comet 209P/LINEAR At Opposition (3.432 AU)
    Nov 18 - Asteroid 1640 Nemo Closest Approach To Earth (0.946 AU)
    Nov 18 - Asteroid 4922 Leshin Closest Approach To Earth (1.204 AU)
    Nov 18 - Asteroid 484 Pittsburghia Closest Approach To Earth (1.727 AU)
    Nov 18 - Asteroid 4356 Marathon Closest Approach To Earth (2.269 AU)
    Nov 18 - Neptune Trojan 2011 WG157 At Opposition (29.819 AU)
    Nov 18 - Kuiper Belt Object 2010 VK201 At Opposition (47.069 AU)
    Nov 18 - Louis Daguerre's 230th Birthday (1787)
    Nov 19 - Comet P/2011 VJ5 (Lemmon) At Opposition (0.965 AU)
    Nov 19 - Comet 5D/Brorsen At Opposition (2.203 AU)
    Nov 19 - Comet 73P-V/Schwassmann-Wachmann At Opposition (2.711 AU)
    Nov 19 - Comet 73P-BA/Schwassmann-Wachmann At Opposition (2.830 AU)
    Nov 19 - Asteroid 63163 Jerusalem Closest Approach To Earth (1.319 AU)
    Nov 19 - Asteroid 184011 Andypuckett Closest Approach To Earth (1.675 AU)
    Nov 19 - Plutino 84719 (2002 VR128) At Opposition (38.566 AU)
    Nov 19 - Kuiper Belt Object 90377 Sedna At Opposition (84.262 AU)
    Nov 19 - 20th Anniversary (1997), STS-87 Launch (Space Shuttle Columbia)
    Nov 19 - Eleanor Helin's 85th Birthday (1932)
    Nov 19 - Keith Runcorn's 95th Birthday (1922)
    Nov 20 - Mars Summer Solstice
    Nov 20 - Comet 54P/de Vico-Swift-NEAT Closest Approach To Earth (1.746 AU)
    Nov 20 - Comet 236P/LINEAR Perihelion (1.837 AU)
    Nov 20 - Comet 73P-BH/Schwassmann-Wachmann At Opposition (2.841 AU)
    Nov 20 - Comet 73P-BI/Schwassmann-Wachmann At Opposition (2.841 AU)
    Nov 20 - Comet 73P-BM/Schwassmann-Wachmann At Opposition (2.842 AU)
    Nov 20 - Comet 73P-BP/Schwassmann-Wachmann At Opposition (2.842 AU)
    Nov 20 - Comet 73P-BE/Schwassmann-Wachmann At Opposition (2.850 AU)
    Nov 20 - Asteroid 9387 Tweeddledee Closest Approach To Earth (0.944 AU)
    Nov 20 - Asteroid 2579 Spartacus Closest Approach To Earth (1.384 AU)
    Nov 20 - Asteroid 5450 Sokrates Closest Approach To Earth (1.581 AU)
    Nov 20 - Asteroid 8630 Billprady Closest Approach To Earth (1.619 AU)
    Nov 20 - Asteroid 6154 Stevesynnott Closest Approach To Earth (1.700 AU)
    Nov 20 - Apollo Asteroid 3671 Dionysus Closest Approach To Earth (1.781 AU)
    Nov 20 - Asteroid 54439 Topeka Closest Approach To Earth (2.089 AU)
    Nov 20 - Otto von Guericke's 415th Birthday (1602)
    Nov 21 - Aten Asteroid 234145 (2000 EW70) Near-Earth Flyby (0.086 AU)
    Nov 21 - Apollo Asteroid 163696 (2003 EB50) Near-Earth Flyby (0.094 AU)
    Nov 21 - Asteroid 84225 Verish Closest Approach To Earth (1.152 AU)
    Nov 21 - Asteroid 16155 Buddy Closest Approach To Earth (1.369 AU)
    Nov 21 - Asteroid 342843 Davidbowie Closest Approach To Earth (1.620 AU)
    Nov 21 - Asteroid 2985 Shakespeare Closest Approach To Earth (1.897 AU)
    Nov 21 - Asteroid 4442 Garcia Closest Approach To Earth (2.501 AU)
    Nov 22 - Comet 24P/Schaumasse Closest Approach To Earth (1.460 AU)
    Nov 22 - Comet 73P-AA/Schwassmann-Wachmann At Opposition (2.963 AU)
    Nov 22 - Comet 302P/Lemmon-PANSTARRS At Opposition (3.066 AU)
    Nov 22 - Comet 282P/2003 BM80 At Opposition (4.039 AU)
    Nov 22 - Aten Asteroid 2016 LO1 Near-Earth Flyby (0.097 AU)
    Nov 22 - Asteroid 8444 Popovich Closest Approach To Earth (1.129 AU)
    Nov 22 - Asteroid 2228 Soyuz-Apollo Closest Approach To Earth (1.576 AU)
    Nov 22 - Asteroid 118945 Rikhill Closest Approach To Earth (2.288 AU)
    Nov 22 - Alan Stern's 60th Birthday (1957)
    Nov 22 - Vladimir Damgov's 70th Birthday (1947)
    Nov 22 - Guy Bluford's 75th Birthday (1942)
    Nov 22 - 110th Anniverseary (1907), Meteorite Fall in Bali, Central African Republic
    Nov 23 - Comet C/2017 E4 (Lovejoy) At Opposition (2.900 AU)
    Nov 23 - Comet C/2016 A1 (PANSTARRS) Perihelion (5.328 AU)
    Nov 23 - Aten Asteroid 2009 BL71 Near-Earth Flyby (0.079 AU)
    Nov 23 - Asteroid 35977 Lexington Closest Approach To Earth (1.228 AU)
    Nov 23 - Asteroid 11714 Mikebrown Closest Approach To Earth (1.818 AU)
    Nov 23 - Centaur Object 54598 Bienor At Opposition (13.867 AU)
    Nov 23 - 15th Anniversary (2002), STS-113 Launch (Space Shuttle Endeavour, International Space Station)
    Nov 23 - 40th Anniversary (1977), Meteosat 1 Launch (Europe's 1st Weather Satellite)
    Nov 24 - Mercury At Its Greatest Eastern Elongation (22 Degrees)
    Nov 24 - Asteroid 5451 Plato Closest Approach To Earth (1.870 AU)
    Nov 24 - Asteroid 12490 Leiden Closest Approach To Earth (2.546 AU)
    Nov 25 - Comet C/2014 C1 (TOTAS) Closest Approach To Earth (2.677 AU)
    Nov 25 - Asteroid 3043 San Diego Closest Approach To Earth (0.933 AU)
    Nov 25 - Asteroid 5020 Asimov Closest Approach To Earth (1.171 AU)
    Nov 25 - Asteroid 2246 Bowell Closest Approach To Earth (3.108 AU)
    Nov 26 - Comet 145P/Shoemaker-Levy Closest Approach To Earth (1.124 AU)
    Nov 26 - Comet 73P-AW/Schwassmann-Wachmann At Opposition (3.134 AU)
    Nov 26 - Comet 73P-AF/Schwassmann-Wachmann At Opposition (3.165 AU)
    Nov 26 - Asteroid 335 Roberta Occults HIP 18724 (3.4 Magnitude Star)
    * Nov 26 - Apollo Asteroid 3361 Orpheus Near-Earth Flyby (0.061 AU)
    Nov 26 - Asteroid 7645 Pons Closest Approach To Earth (1.075 AU)
    Nov 26 - Asteroid 9253 Oberth Closest Approach To Earth (1.357 AU11)
    Nov 26 - Asteroid 3297 Hong Kong Closest Approach To Earth (1.642 AU)
    Nov 26 - Asteroid 10957 Alps Closest Approach To Earth (1.674 AU)
    Nov 26 - Asteroid 214476 Stephencolbert Closest Approach To Earth (2.311 AU)
    Nov 26 - Boris Yegorov's 80th Birthday (1937)
    Nov 27 - Moon Occults Neptune
    Nov 27 - Comet 317P/WISE At Opposition (3.641 AU)
    Nov 27 - Asteroid 3635 Kreutz Closest Approach To Earth (0.728 AU)
    Nov 27 - Asteroid 9777 Enterprise Closest Approach To Earth (1.741 AU)
    Nov 27 - Asteroid 7919 Prime Closest Approach To Earth (1.814 AU)
    Nov 27 - Asteroid 204852 Frankfurt Closest Approach To Earth (1.859 AU)
    Nov 27 - Asteroid 7758 Poulanderson Closest Approach To Earth (1.879 AU)
    Nov 27 - Jim Wetherbee's 65th Birthday (1952)
    Nov 28 - 50th Anniversary (1967), Discovery of 1st Pulsar by Jocelyn Bell & Antony Hewish
    Nov 28 - Mercury Passes 3.0 Degrees From Saturn
    Nov 28 - Comet 73P-AY/Schwassmann-Wachmann At Opposition (3.240 AU)
    Nov 28 - Comet 73P-AZ/Schwassmann-Wachmann At Opposition (3.241 AU)
    Nov 28 - Apollo Asteroid 11066 Sigurd Closest Approach To Earth (0.808 AU)
    * Nov 28 - Apollo Asteroid 2009 BD Closest Approach To Earth (1.963 AU)
    Nov 28 - Asteroid 11947 Kimclijsters Closest Approach To Earth (2.369 AU)
    Nov 28 - Kuiper Belt Object 386723 (2009 YE7) At Opposition (49.823 AU)
    Nov 28 - 15th Anniversary (2002), Alsat 1 Launch (1st Algerian Satellite)
    Nov 29 - 50th Anniversary (1967), Wresat 1 Launch (Australia's 1st Satellite)

    Nov 29 - Comet 229P/Gibbs Closest Approach To Earth (1.937 AU)
    Nov 29 - Aten Asteroid 2010 VD139 Near-Earth Flyby (0.013 AU)
    Nov 29 - Apollo Asteroid 1863 Antinous Closest Approach To Earth (2.692 AU)
    Nov 29 - Kuiper Belt Object 145453 (2005 RR43) At Opposition (38.580 AU)
    Nov 30 - Apollo Asteroid 10563 Izhdubar Closest Approach To Earth (1.096 AU)
    Nov 30 - Apollo Asteroid 2013 EC20 Closest Approach To Earth (1.681 AU)
    Nov 30 - Asteroid 242516 Lindseystirling Closest Approach To Earth (1.864 AU)
    Nov 30 - Asteroid 310 Margarita Closest Approach To Earth (1.948 AU)
    Nov 30 - Asteroid 1345 Potomac Closest Approach To Earth (2.460 AU)
    Nov 30 - Asteroid 41488 Sinbad Closeset Approach To Earth (2.462 AU)

    December 2017
    Dec ?? - Crew Space Transportation 100 (CST-100) Atlas 5 Launch (Unmanned)
    Dec ?? - ADM-Aeolus (Earth Explorer 4) Vega Launch
    Dec ?? - INCA/ALBus/CACTUS 1/ExoCube 2/MicroMAS 2b/MiTEE 1/Q-PACE/SurfSat/
    CAPE 3/RadFxSat 2 (Fox 1E)/PICS 1 & 2 LauncherOne Launch
    Dec ?? - Amazonia (SSR-1) Equars VLS-1 Launch
    Dec ?? - Meteor-M N2-1/Baumanets 2/Flock 2/Flying Laptop/Ionosfera 1 & 2/Lemur 2 &3/NorSat 1/
    Scout/SEAM/TechnoSat/WNISAT 1R Soyuz-2.1b/Fregat-M Launch
    Dec ?? - GSAT-20 LVM3 Launch
    Dec ?? - Iridium Next 41-50 Falcon 9 Launch
    * Dec ?? - Kanopus V N3 & N4 Soyuz-2.1a/Fregat-M Launch
    * Dec ?? - BeiDou-3 (M7 & M8) CZ-3C/YZ-1 Launch
    Dec 01 - Asteroid 721 Tabora Occults HIP 98688 (4.5 Magnitude Star)
    Dec 01 - Kuiper Belt Object 2006 QH181 At Opposition (82.823 AU)
    Dec 02 - Comet 14P/Wolf Perihelion (2.741 AU)
    Dec 02 - Asteroid 6775 Giorgini Closest Approach To Earth (2.110 AU)
    Dec 02 - Kuiper Belt Object 229762 (2007 UK126) At Opposition (41.558 AU)
    Dec 02 - 25th Anniversary (1992), STS-53 Launch (Space Shuttle Discovery, DOD)
    Dec 03 - Super Moon
    Dec 03 - Moon Occults Aldebaran
    Dec 03 - Comet 345P/LINEAR Closest Approach To Earth (2.813)
    Dec 03 - Comet 221P/LINEAR At Opposition (3.932 AU)
    Dec 03 - Apollo Asteroid 2008 WM61 Near-Earth Flyby (0.010 AU)
    Dec 03 - Asteroid 3313 Mendel Closest Approach To Earth (2.016 AU)
    Dec 03 - Asteroid 12284 Pohl Closest Approach To Earth (2.752 AU)
    Dec 03 - Howard Brewington's 65th Birthday (1952)
    Dec 03 - 100th Anniversary (1917), Strathmore Meteorite Fall (Hit House in Scotland)
    Dec 04 - Comet 90P/Gehrels Closest Approach To Earth (2.246 AU)
    Dec 05 - Comet 54P/de Vico-Swift-NEAT At Opposition (1.776 AU)
    Dec 05 - Asteroid 5263 Arrius Occults HIP 17049 (6.7 Magnitude Star)
    Dec 05 - Aten Asteroid 2010 TK7 (Earth Trojan) Closest Approach To Earth (0.202 AU)
    Dec 05 - Amor Asteroid 1980 Tezcatlipoca Closest Approach To Earth (0.878 AU)
    Dec 05 - Asteroid 3869 Norton Closest Approach To Earth (1.588 AU)
    Dec 05 - Kuiper Belt Object 145451 (2005 RM43) At Opposition (35.741 AU)
    Dec 05 - Mark Showalter's 60th Birthday (1957)
    Dec 05 - Sheldon Glashow's 85th Birthday (1932)
    Dec 06 - Nauka/ERA Proton-M P4 Launch (International Space Station 03R)
    Dec 06 - Mercury Passes 1.3 Degrees from Saturn
    Dec 06 - Comet 79P/du Toit-Hartley At Opposition (1.971 AU)
    Dec 07 - Asteroid 2621 Goto Occults HIP 35842 (6.2 Magnitude Star)
    Dec 07 - Asteroid 2198 Ceplecha Closest Approach To Earth (1.159 AU)
    Dec 07 - Asteroid 6434 Jewitt Closest Approach To Earth (1.360 AU)
    Dec 07 - Asteroid 14220 Alexgibbs Closest Approach To Earth (2.112 AU)
    Dec 07 - 45th Anniversary (1972), Apollo 17 Launch (Last Manned Mission to the Moon)
    Dec 08 - Moon Occults Regulus
    Dec 08 - Comet C/2016 R2 (PANSTARRS) At Opposition (2.094 AU)
    Dec 08 - Apollo Asteroid 4450 Pan Closest Approach To Earth (1.275 AU)
    Dec 08 - Centaur Object 8405 Asbolus At Opposition (20.229 AU)
    Dec 08 - Alphonse Borrelly's 175th Birthday (1842)
    Dec 08 - 25th Anniversary (1992), Galileo, 2nd Earth Flyby
    Dec 09 - Comet P/2016 R4 (Gibbs) At Opposition (3.311 AU)
    Dec 10 - Comet 26P/Grigg-Skjellerup At Opposition (2.175 AU)
    Dec 10 - Comet 82P/Gehrels Closest Approach To Earth (2.704 AU)
    Dec 10 - Comet 82P/Gehrels At Opposition (2.704 AU)
    Dec 10 - Comet 345P/LINEAR At Opposition (2.820 AU)
    Dec 10 - Asteroid 4525 Johnbauer Occults HIP 14821 (6.1 Magnitude Star)
    Dec 10 - Asteroid 18610 Arthurdent Closest Approach To Earth (1.053 AU)
    Dec 10 - Apollo Asteroid 136617 (1994 CC) (2 Moons) Closest Approach To Earth
    (1.747 AU)
    Dec 10 - Asteroid 1002 Olbersia Closest Approach To Earth (1.861 AU)
    Dec 10 - 25th Anniversary (1992), Mihonoseki Meteorite Fall (Fell Through Roof Of A House In Japan)
    Dec 10 - 40th Anniversary (1977), Soyuz 26 Launch (Salyut 6 Space Station)
    Dec 11 - Comet 139P/Vaisala-Oterma Perihelion (3.414 AU)
    Dec 11 - Comet C/2017 F1 (Lemmon) Perihelion (4.449 AU)
    Dec 11 - Asteroid 2451 Dollfus Closest Approach To Earth (2.067 AU)
    Dec 11 - Kuiper Belt Object 2004 XR190 At Opposition (56.305 AU)
    Dec 11 - 5th Anniversary (2012), X-37B OTV-1 F-2 Atlas 5 Launch
    Dec 12 - 50th Anniversary (1967), Pioneer 8 Launch (Solar Orbiter)
    Dec 12 - Asteroid 17768 Tigerlily Closest Approach To Earth (1.783 AU)
    Dec 12 - Asteroid 8353 Megryan Closest Approach To Earth (2.141 AU)
    Dec 12 - Plutino 84922 (2003 VS2) At Opposition (35.664 AU)
    Dec 12 - Plutino 307463 (2002 VU130) At Opposition (39.187 AU)
    Dec 12 - 145th Anniversary (1872), Banbury Meteorite Fall (Hit Wall in England)
    Dec 13 - Geminids Meteor Shower Peak
    Dec 13 - Comet 145P/Shoemaker-Levy At Opposition (1.157 AU)
    Dec 13 - Comet 231P/LINEAR-NEAT At Opposition (2.899 AU)
    Dec 13 - Comet C/2017 D5 (PANSTARRS) At Opposition (3.252 AU)
    Dec 13 - Aten Asteroid 2015 YA Near-Earth Flyby (0.060 AU)
    Dec 13 - Apollo Asteroid 2009 QL8 Near-Earth Flyby (0.088 AU)
    * Dec 13 - Atira Asteroid 2010 XB11 Closest Approach To Earth (1.173 AU)
    Dec 13 - Asteroid 6223 Dahl Closest Approach To Earth (1.624 AU)
    Dec 13 - Asteroid 1762 Russell Closest Approach To Earth (1.734 AU)
    Dec 13 - 5th Anniversary (2012), Chang'E 2 Flyby of Asteroid 4179 Toutatis
    Dec 13 - 20th Anniversary (1997), Vissannapeta Meteorite Fall (Hit House in India)
    Dec 13 - 45 Years (1972) Since Man Has Walked on the Moon (Apollo 17)
    Dec 13 - Kristian Birkeland's 150th Birthday (1867)
    Dec 14 - Moon Occults Asteroid 4 Vesta
    Dec 14 - Comet 90P/Gehrels At Opposition (2.259 AU)
    Dec 14 - Comet 22P/Kopff At Opposition (3.917 AU)
    Dec 14 - Aten Asteroid 2015 XX169 Near-Earth Flyby (0.025 AU)
    Dec 14 - Asteroid 5841 Stone Closest Approach To Earth (0.934 AU)
    Dec 14 - Asteroid 1373 Cincinnati Closest Approach To Earth (1.638 AU)
    Dec 14 - 55th Anniversary (1962), Mariner 2, Venus Flyby
    Dec 14 - 210th Anniversary (1807), Weston Meteorite Fall (Hit Building in Connecticut)
    Dec 15 - Mercury Passes 2.2 Degrees From Venus
    Dec 15 - Comet P/2011 VJ5 (Lemmon) Closest Approach To Earth (0.895 AU)
    Dec 15 - Comet 217P/LINEAR Closest Approach To Earth (1.303 AU)
    Dec 15 - Comet 229P/Gibbs At Opposition (1.965 AU)
    Dec 15 - Aten Asteroid 2014 BA3 Closest Approach To Earth (1.745 AU)
    Dec 15 - Asteroid 118401 LINEAR Closest Approach To Earth (1.884 AU)
    Dec 15 - Kuiper Belt Object 19521 Chaos At Opposition (40.358 AU)
    Dec 15 - Henri Becquerel's 165th Birthday (1852)
    Dec 15 - 405th Anniversary (1612), 1st Observation of the Andromeda Galaxy Through a Telescope (Simon Marius)
    Dec 16 - Arthur C. Clarke's 100th Birthday (1917)
    Dec 16 - Bangabandhu-1 Falcon 9 Launch
    Dec 16 - Comet 176P/LINEAR Closest Approach To Earth (1.885 AU)
    Dec 16 - Apollo Asteroid 3200 Phaethon Near-Earth Flyby (0.069 AU)
    Dec 16 - Asteroid 46977 Krakow Closest Approach To Earth (1.214 AU)
    Dec 16 - Asteroid 215423 Winnecke Closest Approach To Earth (1.467 AU)
    Dec 16 - Asteroid 34419 Corning Closest Approach To Earth (1.911 AU)
    Dec 16 - 20th Anniversary (1997), Galileo, Europa 12 Flyby
    Dec 16 - 55th Anniversary (1962), Explorer 16 Launch (1st Meteroids Mission)
    Dec 16 - 105th Anniversary (1912), 1st Stamp Issued Depicting an Airplane
    Dec 16 - Edward Barnard's 160th Birthday (1857)
    Dec 17 - Comet 208P/McMillan Closest Approach To Earth (2.976 AU)
    Dec 17 - Comet 264P/Larsen At Opposition (3.169 AU)
    Dec 17 - Comet 296P/Garradd At Opposition (4.094 AU)
    Dec 17 - Comet C/2015 V1 (PANSTARRS) Perihelion (4.266 AU)
    Dec 17 - Asteroid 9998 ISO Closest Approach To Earth (1.096 AU)
    Dec 17 - Asteroid 12426 Racquetball Closest Approach To Earth (1.262 AU)
    Dec 17 - Asteroid 13123 Tyson Closest Approach To Earth (1.731 AU)
    Dec 17 - Centaur Object 154783 (2004 PA44) At Opposition (19.718 AU)
    Dec 17 - 5th Anniversary (2012), GRAIL, Moon Impacts
    Dec 17 - Theodore Dunham's 120th Birthday (1897)
    Dec 18 - Comet 91P/Russell At Opposition (3.983 AU)
    Dec 18 - Amor Asteroid 9950 ESA Closest Approach To Earth (1.207 AU)
    Dec 18 - Asteroid 12608 Aesop Closest Approach To Earth (1.212 AU)
    Dec 18 - Asteroid 780 Armenia Closest Approach To Earth (2.148 AU)
    Dec 18 - Asteroid 54522 Menaechmus Closest Approach To Earth (2.259 AU)
    Dec 19 - Comet P/2010 D1 (WISE) Perihelion (2.690 AU)
    Dec 19 - Comet C/2017 A3 (Elenin) Closest Approach To Earth (3.720 AU)
    Dec 19 - Asteroid 4149 Harrison Occults HIP 29509 (6.5 Magnitude Star)
    Dec 19 - Aten Asteroid 2011 YD29 Near-Earth Flyby (0.045 AU)
    Dec 19 - Asteroid 67085 Oppenheimer Closest Approach To Earth (0.973 AU)
    Dec 19 - Asteroid 20 Massalia Closest Approach To Earth (1.093 AU)
    Dec 19 - Asteroid 10001 Palermo Closest Approach To Earth (1.189 AU)
    Dec 19 - Asteroid 1816 Liberia Closest Approach To Earth (1.200 AU)
    Dec 19 - Asteroid 27320 Vellinga Closest Approach To Earth (1.617 AU)
    Dec 19 - Asteroid 30826 Coulomb Closest Approach To Earth (1.649 AU)
    Dec 19 - Albert Michelson's 165th Birthday (1852)
    * Dec 20 - Topaz 5 (NROL-47) Delta 4M Launch
    Dec 20 - Comet 231P/LINEAR-NEAT Closest Approach To Earth (2.892 AU)
    Dec 20 - Comet C/2016 X1 (Lemmon) At Opposition (7.181 AU
    Dec 20 - Apollo Asteroid 2006 XY Near-Earth Flyby (0.017 AU)
    Dec 20 - Apollo Asteroid 2015 GF1 Near-Earth Flyby (0.074 AU)
    Dec 20 - Asteroid 31 Euphrosyne Closest Approach To Earth (1.601 AU)
    Dec 20 - Asteroid 11094 Cuba Closest Approach To Earth (2.614 AU)
    Dec 20 - 15th Anniversary (2002), Nozomi, Earth Flyby
    Dec 21 - Winter Solstice, 16:28 UT
    Dec 21 - Comet P/2009 S2 (McNaught) Perihelion (2.214 AU)
    Dec 21 - Comet 188P/LINEAR-Mueller Closest Approach To Earth (2.317 AU)
    Dec 21 - Asteroid 12759 Joule Closest Approach To Earth (2.127 AU)
    Dec 21 - Plutino 55638 (2002 VE95) At Opposition (28.811 AU)
    Dec 22 - Ursids Meteor Shower Peak
    Dec 22 - Comet 176P/LINEAR At Opposition (1.891 AU)
    Dec 22 - Comet P/2002 EJ57 (LINEAR) At Opposition (2.014 AU)
    Dec 22 - Comet 117P/Helin-Roman-Alu At Opposition (4.124 AU)
    Dec 22 - Comet C/2010 U3 (Boattini) At Opposition (8.195 AU)
    Dec 22 - Apollo Asteroid 418849 (2008 WM64) Near-Earth Flyby (0.039 AU)
    Dec 22 - Apollo Asteroid 2015 YQ1 Near-Earth Flyby (0.044 AU)
    Dec 22 - Apollo Asteroid 2015 HU9 Near-Earth Flyby (0.098 AU)
    Dec 22 - Asteroid 8256 Shenzhou Closest Approach To Earth (0.736 AU)
    Dec 22 - Asteroid 246247 Sheldoncooper Closest Approach To Earth (1.779 AU)
    Dec 22 - Kuiper Belt Object 78799 (2002 XW93) At Opposition (44.607 AU)
    Dec 23 - Comet C/2016 R2 (PANSTARRS) Closest Approach To Earth (2.054 AU)
    Dec 23 - Comet P/2006 F4 At Opposition (2.903 AU)
    Dec 23 - Asteroid 13667 Samthurman Closest Approach To Earth (1.169 AU)
    Dec 23 - Asteroid 5050 Doctorwatson Closest Approach To Earth (1.219 AU)
    Dec 23 - Amor Asteroid 1580 Betulia Closest Approach To Earth (1.580 AU)
    Dec 23 - Karol Bokbo's 80th Birthday (1937)
    Dec 23 - 345th Anniversary (1672), Giovanni Cassini's Discovery of Saturn Moon Rhea
    Dec 24 - Comet C/2017 F1 (Lemmon) Closest Approach To Earth (3.643 AU)
    Dec 24 - Comet 278P/McNaught At Opposition (4.113 AU)
    Dec 24 - Asteroid 263251 Pandabear Closest Approach To Earth (1.322 AU)
    Dec 24 - Asteroid 116939 Jonstewart Closest Approach To Earth (1.680 AU)
    Dec 25 - Venus Passes 1.1 Degrees From Saturn
    Dec 25 - Comet C/2017 F1 (Lemmon) At Opposition (3.643 AU)
    Dec 25 - Aten Asteroid 2016 YA1 Near-Earth Flyby (0.080 AU)
    Dec 25 - Asteroid 4690 Strasbourg Closest Approach To Earth (0.826 AU)
    Dec 25 - Asteroid 1381 Danubia Closest Approach To Earth (1.343 AU)
    Dec 25 - Asteroid 1554 Yugoslavia Closest Approach To Earth (1.759 AU)
    Dec 25 - Plutino 2002 XV93 At Opposition (37.786 AU)
    Dec 26 - Comet 79P/du Toit-Hartley Closest Approach To Earth (1.912 AU)
    Dec 26 - Comet 341P/Gibbs At Opposition (3.245 AU)
    Dec 26 - Comet P/2007 R3 (Gibbs) At Opposition (3.245 AU)
    Dec 26 - Comet C/2015 XY1 (Lemmon) At Opposition (6.985 AU)
    Dec 26 - Aten Asteroid 2007 AG Near-Earth Flyby (0.058 AU)
    Dec 26 - Apollo Asteroid 2015 AF45 Near-Earth Flyby (0.076 AU)
    Dec 26 - Asteroid 3989 Odin Closest Approach To Earth (1.134 AU)
    Dec 26 - Asteroid 8625 Simonhelberg Closest Approach To Earth (1.542 AU)
    Dec 26 - Asteroid 8720 Takamizawa Closest Approach To Earth (2.444 AU)
    Dec 26 - Asteroid 334 Chicago Closest Approach To Earth (3.000 AU)
    * Dec 27 - Soyuz MS-7 Soyuz-FG Launch (International Space Station 53S)
    Dec 27 - Comet C/2016 X1 (Lemmon) Closest Approach To Earth (7.173 AU)
    Dec 27 - Comet C/2015 XY1 (Lemmon) Closest Approach (6.984 AU)
    Dec 27 - Apollo Asteroid 2014 RJ11 Near-Earth Flyby (0.063 AU)
    Dec 27 - Asteroid 4149 Harrison Closest Approach To Earth (1.943 AU)
    Dec 27 - Asteroid 5029 Ireland Closest Approach To Earth (2.039 AU)
    Dec 27 - Asteroid 35350 Lespaul Closest Approach To Earth (2.601 AU)
    Dec 28 - HHK-1/ECA/Moonraker PSLV Launch (Moon Lander)
    Dec 28 - Comet 208P/McMillan At Opposition (2.994 AU)
    Dec 28 - Asteroid 2409 Chapman Closest Approach To Earth (1.387 AU)
    Dec 28 - Asteroid 44597 Thoreau Closest Approach To Earth (1.397 AU)
    Dec 28 - Arthur Eddington's 135th Birthday (1882)
    Dec 29 - Comet 246P/NEAT At Opposition (4.031 AU)
    Dec 29 - Apollo Asteroid 2009 EO2 Near-Earth Flyby (0.090 AU)
    Dec 29 - Apollo Asteroid 140158 (2001 SX169) Near-Earth Flyby (0.090 AU)
    Dec 29 - Asteroid 8622 Mayimbialik Closest Approach To Earth (2.272 AU)
    Dec 29 - 40th Anniversary (1977), Discovery of ALHA 77005 Meteorite (Mars Meteorite)
    Dec 29 - 240th Anniversary (1777), Captain James Cook Observes Solar Eclipse
    Dec 30 - Comet C/2015 X5 (PANSTARRS) Perihelion (6.802 AU)
    Dec 30 - Aten Asteroid 2015 SY Near-Earth Flyby (0.067 AU)
    Dec 30 - Amor Asteroid 4055 Magellan Closest Approach To Earth (2.156 AU)
    Dec 30 - Asteroid 7755 Haute-Provence Closest Approach To Earth (2.364 AU)
    Dec 30 - Asteroid 1712 Angola Closest Approach To Earth (2.646 AU)
    Dec 31 - Moon Occults Aldebaran
    Dec 31 - Comet 288P Closest Approach To Earth (2.060 AU)
    Dec 31 - Comet P/2006 F4 Closest Approach To Earth (2.892 AU)
    Dec 31 - Comet C/2017 A3 (Elenin) At Opposition (3.747 AU)
    Dec 31 - Comet C/2010 U3 (Boattini) Closest Approach To Earth (8.187 AU)
    Dec 31 - Atira Asteroid 481817 (2008 UL90) Closest Approach To Earth (0.857 AU)
    Dec 31 - Asteroid 3473 Sapporo Closest Approach To Earth (1.346 AU)
    Dec 31 - Asteroid 10204 Turing Closest Approach To Earth (1.613 AU)
    Dec 31 - Asteroid 1217 Maximiliana Closest Approach To Earth (1.641 AU)
    Dec 31 - Asteroid 1282 Utopia Closest Approach To Earth (1.923 AU)
    Dec 31 - 10th Anniversary (2007), Deep Impact (EPOXI), 1st Earth Flyby

    January 2018
    Jan 01 - Mercury At Its Greatest Western Elongation (23 Degrees)
    Jan 01 - Asteroid 5899 Jedicke Closest Approach To Earth (0.881 AU)
    Jan 01 - Asteroid 1197 Rhodesia Closest Approach To Earth (1.635 AU)
    Jan 01 - Asteroid 7707 Yes Closest Approach To Earth (1.799 AU)
    Jan 01 - Asteroid 11911 Angel Closest Approach To Earth (2.174 AU)
    Jan 02 - Supermoon
    Jan 02 - Comet 26P/Grigg-Skjellerup Closest Appraoch To Earth (2.103 AU)
    Jan 02 - Aten Asteroid 2015 RT1 Near-Earth Flyby (0.050 AU)
    Jan 02 - Asteroid 1103 Sequoia Closest Approach To Earth (1.043 AU)
    Jan 02 - Asteroid 5053 Chladni Closest Approach To Earth (1.229 AU)
    Jan 02 - Asteroid 3263 Bligh Closest Approach To Earth (1.274 AU)
    Jan 02 - Asteroid 904 Rockefellia Closest Approach To Earth (1.804 AU)
    Jan 02 - Asteroid 787 Moskva Closest Approach To Earth (1.888 AU)
    Jan 02 - Kuiper Belt Object 2014 WP509 At Opposition (41.569 AU)
    Jan 03 - Earth At Perihelion (0.983 AU From Sun)
    Jan 03 - Quadrantids Meteor Shower Peak
    Jan 03 - Comet P/2002 EJ57 (LINEAR) Closest Approach To Earth (1.992 AU)
    Jan 03 - Comet 188P/LINEAR-Mueller At Opposition (2.340 AU)
    Jan 03 - Comet 347P/PANSTARRS Closest Approach To Earth (2.674 AU)
    Jan 03 - Asteroid 1031 Arctica Closest Approach To Earth (2.036 AU)
    Jan 04 - Comet 338P/McNaught Closest Approach To Earth (2.648 AU)
    Jan 04 - Comet 136P/Mueller At Opposition (3.081 AU)
    Jan 04 - Asteroid 2062 Aten Closest Approach To Earth (0.979 AU)
    Jan 04 - Asteroid 19695 Billnye Closest Approach To Earth (1.357 AU)
    Jan 04 - Asteroid 9446 Cicero Closest Approach To Earth (2.551 AU)
    Jan 04 - Isaac Newton's 375th Birthday (1643)
    Jan 05 - Moon Occults Regulus
    Jan 05 - Comet C/2015 X5 (PANSTARRS) Closest Approach To Earth (5.909 AU)
    Jan 05 - Comet C/2015 X5 (PANSTARRS) At Opposition (5.909 AU)
    Jan 05 - Apollo Asteroid 12711 Tukmit Closest Approach To Earth (0.624 AU)
    Jan 05 - Asteroid 76272 De Jong Closest Approach To Earth (1.136 AU)
    Jan 05 - Asteroid 26715 South Dakota Closest Approach To Earth (1.514 AU)
    Jan 05 - Asteroid 631 Philippina Closeset Approach To Earth (1.684 AU)
    Jan 05 - Asteroid 8952 ODAS Closest Approach To Earth (1.751 AU)
    Jan 05 - Asteroid 129564 Christy Closest Approach To Earth (1.933 AU)
    Jan 05 - Asteroid 9250 Chamberlin Closest Approach To Earth (2.621 AU)
    Jan 05 - Harold Gatty's 115th Birthday (1903)
    Jan 06 - Comet 288P At Opposition (2.066 AU)
    Jan 06 - Comet 279P/La Sagra Closest Approach To Earth (2.890 AU)
    Jan 06 - Aten Asteroid 2015 YG Near-Earth Flyby (0.094 AU)
    Jan 06 - Asteroid 3953 Perth Closest Approach To Earth (1.309 AU)
    Jan 06 - Asteroid 3265 Fletcher Closest Approach To Earth (1.441 AU)
    Jan 06 - Asteroid 6984 Lewiscarroll Closest Approach To Earth (2.316 AU)
    Jan 06 - 20th Anniversary (1998), Lunar Prospector Launch (Moon Orbiter)
    Jan 06 - 50th Anniversary (1968), Surveyor 7 Launch (Moon Lander)
    Jan 07 - Mars Passes 0.2 Degrees From Jupiter
    Jan 07 - Comet 149P/Mueller At Opposition (2.699 AU)
    Jan 07 - Aten Asteroid 2013 AT72 Near-Earth Flyby (0.085 AU)
    Jan 07 - Asteroid 5608 Olmos Closest Approach To Earth (1.781 AU)
    Jan 07 - Asteroid 9340 Williamholden Closest Approach To Earth (2.604 AU)
    Jan 07 - Kuiper Belt Object 230965 (2004 XA192) At Opposition (34.608 AU)
    Jan 08 - Asteroid 2398 Jilin Closest Approach To Earth (0.852 AU)
    Jan 08 - Asteroid 1740 Paavo Nurmi Closest Approach To Earth (1.462 AU)
    Jan 08 - Asteroid 243097 Batavia Closest Approach To Earth (1.792 AU)
    Jan 08 - Asteroid 6758 Jesseowens Closest Approach To Earth (1.897 AU)
    Jan 08 - Asteroid 2483 Guinevere Closest Approach To Earth (2.020 AU)
    Jan 08 - 45th Anniversary (1973), Luna 21 Launch (USSR Moon Rover Mission - Lunokhod 2)
    Jan 08 - Sir Frank Dyson's 150th Birthday (1868)
    Jan 09 - Comet 250P/Larson At Opposition (1.254 AU)
    Jan 09 - Comet 128P-A/Shoemaker-Holt Closest Approach To Earth (2.361 AU)
    Jan 09 - Comet 343P/NEAT-LONEOS Closest Approach To Earth (2.643 AU)
    Jan 09 - Asteroid 2614 Torrence Closest Approach To Earth (1.615 AU)
    Jan 09 - Asteroid 6790 Pingouin Closest Approach To Earth (1.860 AU)
    Jan 09 - 225th Anniversary (1793), 1st Successful Balloon Flight in the Americas (Jean Pierre Blanchard)
    Jan 09 - 375th Anniversary (1643), 1st Observation of Ashen Light of Venus (Giovanni Riccioli)
    Jan 10 - Aten Asteroid 2004 FH Near-Earth Flyby (0.051 AU)
    Jan 10 - Apollo Asteroid 1620 Geographos Closest Approach To Earth (1.410 AU)
    Jan 10 - Asteroid 295565 Hannover Closest Approach To Earth (1.682 AU)
    Jan 10 - Apollo Asteroid 3360 Syrinx Closest Approach To Earth (3.240 AU)
    Jan 10 - Joachim Muehlner's 105th Birthday (1913)
    Jan 11 - Atira Asteroid 2007 EB26 Closest Approach To Earth (0.171 AU)
    Jan 11 - Asteroid 6000 United Nations Closest Approach To Earth (1.741 AU)
    Jan 11 - Asteroid 67 Asia Closest Approach To Earth (1.865 AU)
    Jan 11 - Asteroid 11881 Mirstation Closest Approach To Earth (1.983 AU)
    Jan 11 - Asteroid 35165 Quebec Closest Approach To Earth (2.288 AU)
    Jan 12 - Moon Occults Asteroid 4 Vesta
    Jan 12 - Comet 250P/Larson Closest Approach To Earth (1.253 AU)
    Jan 12 - Comet 57P/du Toit-Neujmin-Delporte At Opposition (4.076 AU)
    Jan 12 - Comet 57P-A/du Toit-Neujmin-Delporte At Opposition (4.076 AU)
    Jan 12 - Comet 320P/McNaught At Opposition (4.191 AU)
    Jan 12 - Asteroid 7470 Jabberwock Closest Approach To Earth (1.352 AU)
    Jan 12 - Apollo Asteroid 25143 Itokawa Closest Approach To Earth (1.421 AU)
    Jan 12 - Asteroid 4923 Clarke Closest Approach To Earth (1.598 AU)
    Jan 12 - Asteroid 1489 Attila Clsoest Approach To Earth (2.026 AU)
    Jan 13 - Asteroid 4125 Lew Allen Closest Approach To Earth (1.169 AU)
    Jan 13 - Asteroid 3001 Michelangelo Closest Approach To Earth (1.243 AU)
    Jan 13 - Asteroid 2200 Pasadena Closest Approach To Earth (1.364 AU)
    Jan 13 - Asteroid 2867 Steins Closest Approach To Earth (1.731 AU)
    Jan 13 - 25th Anniversary (1993), STS-54 Launch (Space Shuttle Endeavour, TDRS-F)
    Jan 14 - Comet 217P/LINEAR At Opposition (1.414 AU)
    Jan 14 - Comet 347P/PANSTARRS At Opposition (2.693 AU)
    Jan 14 - Comet P/2005 L1 (McNaught) At Opposition (3.823 AU)
    Jan 14 - Comet 88P/Howell At Opposition (3.876 AU)
    Jan 14 - Apollo Asteroid 1864 Daedalus Closest Approach To Earth (1.143 AU)
    Jan 14 - Asteroid 12927 Pinocchio Closest Approach To Earth (1.257 AU)
    Jan 14 - Asteroid 736 Harvard Closest Approach To Earth (1.472 AU)
    Jan 14 - Asteroid 342431 Hilo Closest Approach To Earth (1.731 AU)
    Jan 14 - Asteroid 21811 Burroughs Closest Approach To Earth (1.863 AU)
    Jan 14 - Asteroid 6042 Chesirecat Closest Approach To Earth (2.002 AU)
    Jan 14 - Asteroid 793 Arizona Closest Approach To Earth (2.074 AU)
    Jan 14 - 10th Anniversary (2008), MESSENGER, 1st Mercury Flyby
    Jan 14 - Shannon Lucid's 75th Birthday (1943)
    Jan 15 - Aten Asteroid 2007 WM3 Near-Earth Flyby (0.098 AU)
    Jan 15 - Asteroid 2912 Lapalma Closest Approach To Earth (1.246 AU)
    Jan 15 - Apollo Asteroid 3838 Epona Closest Approach To Earth (1.266 AU)
    Jan 15 - Asteroid 12524 Conscience Closest Approach To Earth (1.654 AU)
    Jan 15 - Asteroid 159814 Saguaro Closest Approach To Earth (2.234 AU)
    Jan 15 - 45th Anniversary (1973), Luna 21 Moon Landing (USSR Moon Rover Mission - Lunokhod 2)
    Jan 16 - Comet 324P/La Sagra Closest Approach To Earth (2.528 AU)
    Jan 16 - Apollo Asteroid 438017 (2003 YO3) Near-Earth Flyby (0.071 AU)
    Jan 16 - Asteroid 9951 Tyrannosaurus Closest Approach To Earth (1.738 AU)
    Jan 16 - Asteroid 7169 Linda Closest Approach To Earth (1.825 AU)
    Jan 16 - Anatoly Solovyev's 70th Birthday (1948)
    Jan 17 - Comet 128P-A/Shoemaker-Holt At Opposition (2.370 AU)
    Jan 17 - Comet 279P/La Sagra At Opposition (2.906 AU)
    Jan 17 - Comet C/2016 A1 (PANSTARRS) Closest Approach To Earth (4.397 AU)
    Jan 17 - Asteroid 4352 Kyoto Closest Approach To Earth (1.494 AU)
    Jan 17 - Asteroid 2041 Lancelot Closest Approach To Earth (1.889 AU)
    Jan 17 - Asteroid 8080 Intel Closest Approach To Earth (2.057 AU)
    Jan 17 - Asteroid 17078 Sellers Closest Approach To Earth (2.209 AU)
    Jan 18 - Comet 324P/La Sagra At Opposition (2.529 AU)
    Jan 18 - Comet 287P/Christensen At Opposition (4.049 AU)
    Jan 18 - Comet P/2011 S1 (Gibbs) Closest Approach To Earth (6.726 AU)
    Jan 18 - Apollo Asteroid 4581 Asciepius Closest Approach To Earth (0.289 AU)
    Jan 18 - Asteroid 8627 Kunalnayyar Closest Approach To Earth (1.869 AU)
    Jan 18 - Jeffrey Williams' 60th Birthday (1958)
    Jan 19 - Comet 238P/Read Closest Approach To Earth (2.243 AU)
    Jan 19 - Comet P/1998 VS24 (LINEAR) Perihelion (3.439 AU)
    Jan 19 - Comet C/2016 A1 (PANSTARRS) At Opposition (4.398 AU)
    Jan 19 - Asteroid 43844 Rowling Closest Approach To Earth (1.978 AU)
    Jan 19 - Harold Reitsema's 70th Birthday (1948)
    Jan 20 - Comet 149P/Mueller Closest Approach To Earth (2.675 AU)
    Jan 20 - Comet 338P/McNaught At Opposition (2.680 AU)
    Jan 20 - Comet C/2017 G3 (PANSTARRS) Closest Approach To Earth (2.943 AU)
    Jan 20 - Apollo Asteroid 2015 NJ3 Near-Earth Flyby (0.056 AU)
    Jan 20 - Asteroid 2322 Kitt Peak Closest Approach To Earth (1.313 AU)
    Jan 20 - Asteroid 15845 Bambi Closest Approach To Earth (1.464 AU)
    Jan 20 - Apollo Asteroid 2011 MD Closest Approach To Earth (1.975 AU)
    Jan 20 - Jerry Ross' 70th Birthday (1948)
    Jan 20 - Simon Marius' 445th Birthday (1573)
    Jan 21 - Comet P/2011 S1 (Gibbs) At Opposition (6.727 AU)
    Jan 21 - Apollo Asteroid 2015 XK351 Near-Earth Flyby (0.073 AU)
    Jan 21 - Asteroid 10168 Stony Ridge Closest Approach To Earth (1.707 AU)
    Jan 21 - Asteroid 24750 Ohm Closest Approach To Earth (1.760 AU)
    Jan 21 - Asteroid 23469 Neilpeart Closest Approach To Earth (1.921 AU)
    Jan 21 - Apollo Asteroid 314082 Dryope Closest Approach To Earth (1.940 AU)
    Jan 21 - Kuiper Belt Object 20000 Varuna At Opposition (42.904 AU)
    Jan 21 - Bengt Stromgren's 110th Birthday (1908)
    Jan 21 - Luis Cruls' 170th Birthday (1848)
    Jan 22 - Comet 130P/McNaught-Hughes Perihelion (1.824 AU)
    Jan 22 - Comet 10P/Tempel At Opposition (3.610 AU)
    Jan 22 - Comet C/2015 D3 (PANSTARRS) Closest Approach To Earth (8.144 AU)
    Jan 22 - Aten Asteroid 306383 (1993 VD) Near-Earth Flyby (0.037 AU)
    Jan 22 - Amor Asteroid 2006 AL4 Near-Earth Flyby (0.055 AU)
    Jan 22 - Asteroid 2843 Yeti Closest Approach To Earth (1.057 AU)
    Jan 22 - Asteroid 6216 San Jose Closest Approach To Earth (1.635 AU)
    Jan 22 - Asteroid 7000 Curie Closest Approach To Earth (1.720 AU)
    Jan 22 - Asteroid 6128 Lasorda Closest Approach To Earth (2.093 AU)
    Jan 22 - Asteroid 12542 Laver Closest Approach To Earth (2.603 AU)
    Jan 22 - 20th Anniversary (1998), STS-89 Launch (Space Shuttle Endeavour, Mir
    Space Station)
    Jan 22 - 50th Anniversary (1968), Apollo 5 Launch
    Jan 22 - Lev Landau's 110th Birthday (1908)
    Jan 23 - Comet 249P/LINEAR At Opposition (4.041 AU)
    Jan 24 - Comet P/1999 XN120 (Catalina) Closest Approach To Earth (2.454 AU)
    Jan 24 - Asteroid 9879 Mammuthus Closest Approach To Earth (1.846 AU)
    Jan 24 - Centaur Object 32532 Thereus At Opposition (11.761 AU)
    Jan 24 - Plutino 208996 (2003 AZ84) At Opposition (43.608 AU)
    Jan 24 - Ernst Heinkel's 130th Birthday (1888)
    Jan 25 - Asteroid 7850 Buenos Aires Closest Approach To Earth (1.505 AU)
    Jan 25 - Asteroid 19019 Sunflower Closest Approach To Earth (1.637 AU)
    Jan 25 - Asteroid 1913 Sekanina Closest Approach To Earth (1.890 AU)
    Jan 25 - Asteroid 25000 Astrometria Closest Approach To Earth (1.921 AU)
    Jan 25 - Asteroid 84784 Bettiepage Closest Approach To Earth (2.122 AU)
    Jan 25 - 35th Anniversary (1983), IRAS Launch
    Jan 26 - Comet 238P/Read At Opposition (2.250 AU)
    Jan 26 - Comet 343P/NEAT-LONEOS At Opposition (2.685 AU)
    Jan 26 - Aten Asteroid 2011 CD66 Near-Earth Flyby (0.079 AU)
    Jan 26 - Asteroid 1140 Crimea Closest Approach To Earth (1.883 AU)
    Jan 26 - Asteroid 2636 Lassell Closest Approach To Earth (2.154 AU)
    Jan 26 - 40th Anniversary (1978), IUE Launch
    Jan 26 - Leo Goldberg's 105th Birthday (1913)
    Jan 27 - Moon Occults Aldebaran
    Jan 27 - Comet 74P/Smirnova-Chernykh Perihelion (3.537 AU)
    Jan 27 - Asteroid 9619 Terrygilliam Closest Approach To Earth (1.852 AU)
    Jan 27 - Asteroid 2866 Hardy Closest Approach To Earth (2.379 AU)
    Jan 27 - Antonin Mrkos' 100th Birthday (1918)
    Jan 28 - Comet 185P/Petriew Perihelion (0.934 AU)
    Jan 28 - Comet 197P/LINEAR Closest Approach To Earth (1.818 AU)
    Jan 28 - Comet P/1999 XN120 (Catalina) At Opposition (2.456 AU)
    Jan 28 - Comet C/2016 Q4 (Kowalski) Perihelion (7.084 AU)
    Jan 28 - Comet 1P/Halley At Opposition (33.683 AU)
    Jan 28 - Asteroid 4628 Laplace Closest Approach To Earth (1.417 AU)
    Jan 28 - Asteroid 4999 MPC Closest Approach To Earth (1.918 AU)
    Jan 28 - Amor Asteroid 4957 Brucemurray Closest Approach To Earth (2.008 AU)
    Jan 28 - Asteroid 11814 Schwamb Closest Approach To Earth (2.266 AU)
    Jan 28 - James Watson's 180th Birthday (1838)
    Jan 28 - Giovanni Borelli's 410th Birthday (1608)
    * Jan 29 - Comet 197P/LINEAR Perihelion (1.060 AU)
    Jan 29 - Comet C/2016 T3 (PANSTARRS) Closest Approach To Earth (2.193 AU)
    Jan 29 - Atira Asteroid 2006 WE4 Closest Approach To Earth (0.106 AU)
    Jan 29 - Asteroid 9965 GNU Closest Approach To Earth (1.568 AU)
    Jan 30 - Comet 18D/Perrine-Mrkos Closest Approach To Earth (2.472 AU)
    Jan 30 - Comet 128P-B/Shoemaker-Holt Closest Approach To Earth (2.691 AU)
    Jan 30 - Comet 128P/Shoemaker-Holt Closest Approach To Earth (2.693 AU)
    * Jan 30 - Comet 350P/McNaught Perihelion (3.751 AU)
    Jan 30 - Comet C/2015 D3 (PANSTARRS) At Opposition (8.153 AU)
    Jan 30 - Aten Asteroid 2017 BG136 Near-Earth Flyby (0.078 AU)
    Jan 30 - Asteroid 3353 Jarvis Closest Approach To Earth (1.118 AU)
    * Jan 30 - Apollo Asteroid 410777 (2009 FD) Closest Approach To Earth (1.198 AU)
    Jan 30 - Asteroid 6470 Aldrin Closest Approach To Earth (1.325 AU)
    Jan 30 - Asteroid 9618 Johncleese Closest Approach To Earth (1.651 AU)
    Jan 30 - Asteroid 19148 Alaska Closest Approach To Earth (1.829 AU)
    Jan 30 - Asteroid 3487 Edgeworth Closest Approach To Earth (2.103 AU)
    Jan 30 - Robert Jedicke's 55th Birthday (1963)
    Jan 30 - 150th Anniversary (1868), Pultusk Meteorite Shower (Hit Houses)
    Jan 31 - Total Lunar Eclipse
    Jan 31 - Supermoon
    Jan 31 - Aten Asteroid 2003 CA4 Near-Earth Flyby (0.054 AU)
    Jan 31 - Aten Asteroid 2017 BB30 Near-Earth Flyby (0.098 AU)
    Jan 31 - Asteroid 64070 NEAT Closest Approach To Earth (1.440 AU)
    Jan 31 - Asteroid 2281 Biela Closest Approach To Earth (1.519 AU)
    Jan 31 - Asteroid 1631 Kopff Closest Approach To Earth (1.698 AU)
    Jan 31 - Asteroid 60186 Las Cruces Closest Approach To Earth (1.733 AU)
    Jan 31 - Asteroid 2956 Yeomans Closest Approach To Earth (1.838 AU)
    Jan 31 - 60th Anniversary (1958), Explorer 1 Launch (1st US Satellite)

    February 2018
    Feb ?? - CRS-14 Falcon 9 Launch
    Feb ?? - Iridium Next 51-60 Falcon 9 Launch
    * Feb ?? - BeiDou-3 (M9 & M10) CZ-3C/YZ-1 Launch
    Feb 01 - 15th Anniversary (2003), Space Shuttle Columbia Disaster
    Feb 01 - Moon Occults Regulus
    Feb 01 - Comet 344P/Read Closest Approach To Earth (2.992 AU)
    Feb 01 - Asteroid 3837 Carr Closest Approach To Earth (1.581 AU)
    Feb 01 - Dwarf Planet Ceres Closest Approach To Earth (1.602 AU)
    Feb 01 - Asteroid 4252 Godwin Closest Approach To Earth (1.685 AU)
    Feb 01 - Asteroid 4103 Chahine Closest Approach To Earth (1.848 AU)
    Feb 01 - 15th Anniversary (2003), Hiroshima Meteorite Fall (Hit Warehouse in Japan)
    Feb 02 - HTV-7 H-2B Launch
    Feb 02 - Comet 250P/Larson Perihelion (2.213 AU)
    Feb 02 - Comet C/2017 G3 (PANSTARRS) At Opposition (2.989 AU)
    Feb 02 - Apollo Asteroid 2002 CB19 Near-Earth Flyby (0.027 AU)
    Feb 03 - Comet P/2005 J1 (McNaught) At Opposition (1.938 AU)
    Feb 03 - Comet 323P/SOHO At Opposition (3.544 AU)
    Feb 03 - Asteroid 3255 Tholen Closest Approach To Earth (1.059 AU)
    Feb 03 - Asteroid 3264 Bounty Closest Approach To Earth (1.779 AU)
    Feb 03 - Asteroid 12818 Tomhanks Closest Approach To Earth (1.920 AU)
    Feb 03 - Asteroid 1000 Piazzia Closest Approach To Earth (2.410 AU)
    * Feb 03 - Apollo Asteroid 6489 Golevka Closest Approach To Earth (2.510 AU)
    Feb 03 - Alan Rubin's 65th Birthday (1953)
    Feb 04 - Apollo Asteroid 276033 (2002 AJ129) Near-Earth Flyby (0.028 AU)
    Feb 04 - Asteroid 9341 Gracekelly Closest Approach To Earth (1.789 AU)
    Feb 04 - Asteroid 1940 Whipple Closest Approach To Earth (1.955 AU)
    Feb 05 - Asteroid 3306 Byron Closest Approach To Earth (1.514 AU)
    Feb 05 - Asteroid 8553 Bradsmith Closest Approach To Earth (1.520 AU)
    Feb 05 - Asteroid 19034 Santorini Closest Approach To Earth (2.802 AU)
    Feb 05 - Asteroid 37452 Spirit Closest Approach To Earth (2.934 AU)
    Feb 05 - 55th Anniversary (1963), 1st Quasar Redshift Measurement (Maarten Schmidt)
    Feb 05 - 175th Anniversary (1843), Great Comet of 1843 Discovered
    Feb 06 - Comet 311P/PANSTARRS Closest Approach To Earth (1.122 AU)
    Feb 06 - Asteroid 7359 Messier Closest Approach To Earth (2.149 AU)
    Feb 06 - 130th Anniversary (1888), Williamina Fleming's Discovery of the Horsehead Nebula
    Feb 06 - Thomas David Anderson's 165th Birthday (1853)
    Feb 07 - Comet 128P-B/Shoemaker-Holt At Opposition (2.702 AU)
    Feb 07 - Comet 128P/Shoemaker-Holt At Opposition (2.703 AU)
    Feb 07 - Apollo Asteroid 2014 SR339 Near-Earth Flyby (0.054 AU)
    Feb 07 - Asteroid 71000 Hughdowns Closest Approach To Earth (1.600 AU)
    Feb 07 - 10th Anniversary (2008), STS-122 Launch (Space Shuttle Atlantis, International Space Station)
    Feb 07 - Nicolas Sarrabat's 320th Birthday (1698)
    Feb 08 - Comet 56P/Slaughter-Burnham At Opposition (3.533 AU)
    Feb 08 - Comet P/2005 GF8 (LONEOS) At Opposition (3.807 AU)
    Feb 08 - Asteroid 378214 Sauron Closest Approach To Earth (0.705 AU)
    Feb 08 - 15th Anniversary (2003), Brett Gladman, et al's Discovery of Jupiter
    Moon Herse
    Feb 08 - Hiroki Kosai's 85th Birthday (1933)
    Feb 08 - Jules Verne's 190th Birthday (1828)
    Feb 09 - Moon Occults Asteroid 4 Vesta
    Feb 09 - Comet 245P/WISE Perihelion (2.190 AU)
    Feb 09 - Apollo Asteroid 2015 BN509 Near-Earth Flyby (0.033 AU)
    Feb 09 - Asteroid 13801 Kohlhase Closest Approach To Earth (1.614 AU)
    Feb 09 - Asteroid 274300 UNESCO Closest Approach To Earth (1.761 AU)
    Feb 09 - 105th Anniversary (1913), Great Meteor Procession of 1913
    Feb 10 - Comet P/2013 CU129 (PANSTARRS) At Opposition (1.039 AU)
    Feb 10 - Comet 311P/PANSTARRS At Opposition (1.125 AU)
    Feb 10 - Aten Asteroid 2015 FV118 Near-Earth Flyby (0.093 AU)
    Feb 10 - Asteroid 249519 Whitneyclavin Closest Approach To Earth (1.740 AU)
    Feb 10 - Asteroid 8889 Mockturtle Closest Approach To Earth (2.227 AU)
    Feb 10 - Apollo Asteroid 14827 Hypnos Closest Approach To Earth (3.384 AU)
    Feb 10 - 20th Anniversary (1998), Galileo, Europa 13 Flyby
    Feb 10 - 60th Anniversary (1958), Radar Bounced Off Venus by MIT
    Feb 11 - Aten Asteroid 2014 WQ202 Near-Earth Flyby (0.039 AU)
    Feb 11 - Apollo Asteroid 1991 VG Near-Earth Flyby (0.047 AU)
    Feb 11 - Apollo Asteroid 2016 WQ3 Near-Earth Flyby (0.095 AU)
    Feb 11 - Asteroid 7853 Confucius Closest Approach To Earth (1.392 AU)
    Feb 11 - Asteroid 58671 Diplodocus Closest Approach To Earth (1.732 AU)
    Feb 11 - Asteroid 301 Bavaria Closest Approach To Earth (1.842 AU)
    Feb 11 - Asteroid 6824 Mallory Closest Approach To Earth (2.198 AU)
    Feb 11 - Asteroid 4321 Zero Closest Approach To Earth (2.443 AU)
    Feb 12 - Comet 344P/Read At Opposition (3.010 AU)
    Feb 12 - Apollo Asteroid 137052 Tjelvar Closest Approach To Earth (0.260 AU)
    Feb 12 - Asteroid 4738 Jimihendrix Closest Approach To Earth (2.162 AU)
    Feb 12 - Asteroid 1008 La Paz Closest Approach To Earth (2.178 AU)
    Feb 12 - Asteroid 2160 Spitzer Closest Approach To Earth (2.183 AU)
    Feb 12 - Julian Schwinger's 100th Birthday (1918)
    Feb 12 - Marcel Minnaert's 125th Birthday (1893)
    Feb 13 - Apollo Asteroid 2015 SY16 Near-Earth Flyby (0.053 AU)
    Feb 13 - Asteroid 3155 Lee Closest Approach To Earth (1.342 AU)
    Feb 13 - Chuck Yeager's 95th Birthday (1923)
    Feb 13 - Valentin Naboth's 495th Birthday (1523)
    Feb 14 - Comet 73P-Y/Schwassmann-Wachmann At Opposition (1.689 AU)
    Feb 14 - Comet P/2003 L1 (Scotti) At Oppositon (4.959 AU)
    Feb 14 - Asteroid 25275 Jocelynbell Closest Approach To Earth (1.367 AU)
    Feb 14 - Asteroid 3123 Dunham Closest Approach To Earth (1.782 AU)
    Feb 14 - Asteroid 172996 Stooke Closest Approach To Earth (1.930 AU)
    Feb 14 - 55th Anniversary (1963), Syncom 1 Launch (1st Geosynchronous Satellite)
    Feb 14 - Fritz Zwicky's 120th Birthday (1898)
    Feb 14 - Benjamin Baillaud's 170th Birthday (1848)
    Feb 15 - Cygnus CRS-10 (OA-10) Antares 230 Launch
    Feb 15 - Partial Solar Eclipse (Visible from Antarctica)
    Feb 15 - 5th Anniversary (2013), Fireball Explosion Over Chelyabinsk, Russia
    Feb 15 - Galileo Day
    Feb 15 - Asteroid 6594 Tasman Closest Approach To Earth (2.249 AU)
    Feb 15 - 45th Anniversary (1973), Pioneer 10 Becomes 1st Spacecraft to Pass Through Main Asteroid Belt
    Feb 16 - Chinese New Year
    Feb 16 - Apollo Asteroid 162882 (2001 FD58) Near-Earth Flyby (0.088 AU)
    Feb 16 - Asteroid 1832 Mrkos Closest Approach To Earth (2.405 AU)
    Feb 16 - Asteroid 1157 Arabia Closest Approach To Earth (2.552 AU)
    Feb 16 - Asteroid 11998 Fermilab Closest Approach To Earth (2.790 AU)
    Feb 16 - 40th Anniversary (1978), Social Media Born
    Feb 16 - 70th Anniversary (1948), Gerard Kuiper's Discovery of Uranus Moon Miranda
    Feb 16 - Pierre Bouguer's 320th Birthday (1698)
    Feb 17 - Comet 185P/Petriew Closest Approach To Earth (1.328 AU)
    Feb 17 - Comet C/2014 R3 (PANSTARRS) At Opposition (7.248 AU)
    Feb 17 - Tobias Mayer's 295th Birthday (1723)
    Feb 18 - Comet 93P/Lovas Closest Approach To Earth (2.586 AU)
    Feb 18 - Comet 220P/McNaught At Opposition (3.686 AU)
    Feb 18 - Comet C/2015 O1 (PANSTARRS) Perihelion (3.731 AU)
    Feb 18 - Apollo Asteroid 2016 CA138 Near-Earth Flyby (0.056 AU)
    Feb 18 - Apollo Asteroid 2101 Adonis Closest Approach To Earth (0.221 AU)
    Feb 18 - Asteroid 5035 Swift Closest Approach To Earth (1.365 AU)
    Feb 18 - Asteroid 3850 Peltier Closest Approach To Earth (1.609 AU)
    Feb 18 - Asteroid 341 California Closest Approach To Earth (1.643 AU)
    Feb 18 - Asteroid 2022 West Closest Approach To Earth (1.806 AU)
    Feb 18 - 70th Anniversary (1948), Norton County Meteorite Shower in Kansas
    Feb 18 - 105th Anniversary (1913), Frederick Soddy Introduces The Concept of Isotopes
    Feb 18 - Ernst Mach's 180th Birthday (1838)
    Feb 19 - Comet 125P/Spacewatch At Opposition (1.314 AU)
    Feb 19 - Comet 44P/Reinmuth At Opposition (4.156 AU)
    * Feb 19 - Asteroid 1862 Apollo Closest Approach To Earth (1.530 AU)
    Feb 19 - Aten Asteroid 341843 (2008 EV5) Closest Approach To Earth (1.797 AU)
    Feb 19 - Kuiper Belt Object 55565 (2002 AW197) At Opposition (44.522 AU)
    Feb 19 - Nicolaus Copernicus' 545th Birthday (1473)
    Feb 20 - Comet 73P-S/Schwassmann-Wachmann At Opposition (1.341 AU)
    Feb 20 - Comet 18D/Perrine-Mrkos At Opposition (2.530 AU)
    Feb 20 - Comet P/2003 L1 (Scotti) Closest Approach To Earth (4.954 AU)
    Feb 20 - Asteroid 4345 Rachmaninoff Closest Approach To Earth (1.848 AU)
    Feb 20 - Asteroid 31000 Rockchic Closest Approach To Earth (2.181 AU)
    Feb 20 - Asteroid 99905 Jeffgrossman Closest Approach To Earth (2.378 AU)
    Feb 20 - Asteroid 2848 ASP Closest Approach To Earth (2.479 AU)
    Feb 20 - Asteroid 2023 Asaph Closest Approach To Earth (2.556 AU)
    Feb 20 - Aleksandr Aleksandrov's 75th Birthday (1943)
    Feb 21 - Venus Passes 0.6 Degrees From Neptune
    Feb 21 - Comet C/2016 T3 (PANSTARRS) At Opposition (2.254 AU)
    Feb 21 - Comet 326P/Hill At Opposition (3.693AU)
    Feb 21 - Asteroid 5905 Johnson Closest Approach To Earth (1.086 AU)
    Feb 21 - Asteroid 12464 Manhattan Closest Approach To Earth (1.207 AU)
    Feb 21 - Asteroid 149 Medusa Closest Approach To Earth (1.210 AU)
    Feb 21 - Asteroid 15402 Suzaku Closest Approach To Earth (1.838 AU)
    Feb 21 - Asteroid 3693 Barringer Closest Approach To Earth (2.679 AU)
    Feb 21 - Kuiper Belt Object 148209 (2000 CR105) At Opposition (60.582 AU)
    Feb 21 - 10th Anniversary (2008), USA Shot Down Failed Military Satellite (USA-193) with Missile
    Feb 22 - Progress MS-9 Soyuz-2.1a Launch (International Space Station 70P)
    Feb 22 - Apollo Asteroid 2016 CO246 Near-Earth Flyby (0.039 AU)
    Feb 22 - Atira Asteroid 2013 TQ5 Closest Approach To Earth (0.374 AU)
    Feb 22 - Asteroid 160512 Franck-Hertz Closest Approach To Earth (2.377 AU)
    Feb 22 - Harald Friis' 125th Birthday (1893)
    Feb 23 - Moon Occults Aldebaran
    Feb 23 - Asteroid 12104 Chesley Closest Approach To Earth (2.068 AU)
    Feb 24 - 50th Anniversary (1968), Jocelyn Bell's & Antony Hewish's Discovery of Pulsars
    Feb 24 - Comet C/2014 B1 (Schwartz) Closest Approach To Earth (8.613 AU)
    Feb 24 - Aten Asteroid 2017 DR109 Near-Earth Flyby (0.010 AU)
    Feb 24 - Asteroid 1855 Korolev Closest Approach To Earth (1.087 AU)
    Feb 24 - Aten Asteroid 99942 Apophis Closest Approach To Earth (1.552 AU)
    Feb 24 - Asteroid 171183 Haleakala Closest Approach To Earth (2.043 AU)
    Feb 24 - Asteroid 10195 Nebraska Closest Approach To Earth (2.380 AU)
    Feb 25 - Mercury Passes 0.5 Degrees From Neptune
    Feb 25 - Comet 103P/Hartley Closest Approach To Earth (2.438 AU)
    Feb 25 - Comet C/2014 R3 (PANSTARRS) Closest Approach To Earth (7.258 AU)
    Feb 25 - Comet C/2014 B1 (Schwartz) At Opposition (8.614 AU)
    Feb 25 - Asteroid 8749 Beatles Closest Approach To Earth (1.089 AU)
    Feb 26 - Apollo Asteroid 2016 FU12 Near-Earth Flyby (0.034 AU)
    Feb 26 - Apollo Asteroid 2004 CK39 Near-Earth Flyby (0.086 AU)
    Feb 26 - Apollo Asteroid 2017 DF38 Near-Earth Flyby (0.098 AU)
    Feb 26 - Asteroid 1831 Nicholson Closest Approach To Earth (1.290 AU)
    Feb 26 - Susan Helms' 60th Birthday (1958)
    Feb 27 - Comet 321P/SOHO At Opposition (3.810 AU)
    Feb 27 - Apollo Asteroid 2014 EY24 Near-Earth Flyby (0.038 AU)
    Feb 27 - Asteroid 10637 Heimlich Closest Approach To Earth (2.146 AU)
    Feb 28 - Comet 346P/Catalina Closest Approach To Earth (2.683 AU)
    Feb 28 - Apollo Asteroid 2015 BF511 Near-Earth Flyby (0.030 AU)
    Feb 28 - Asteroid 7434 Osaka Closest Approach To Earth (1.334 AU)
    Feb 28 - Asteroid 21459 Chrisrussell Closest Approach To Earth (1.464 AU)
    Feb 28 - Plutino 90482 Orcus At Opposition (47.134 AU)

    March 2018
    Mar ?? - Cygnus CRS-9 (OA-9) Antares 230 Launch (International Space Station)
    Mar ?? - AFSPC 11/EAGLE Atlas 5 Launch
    Mar ?? - Spektr-RG (SXG) Proton-M/DM-03 Launch
    Mar ?? - OneWeb 1-10 Soyuz-STB Fregat-MT Launch
    Mar ?? - GOES-S Atlas 5 Launch
    Mar ?? - Cartosat-3 PSLV-CA Launch
    * Mar ?? - BeiDou-3 (M11 & M12) CZ-3C/YZ-1 Launch
    Mar ?? - James Bradley's 325th Birthday (1693)
    Mar 01 - Moon Occults Regulus
    Mar 01 - Comet 73P-T/Schwassmann-Wachmann Closest Approach To Earth (1.276 AU)
    Mar 01 - Comet 327P/Van Ness At Opposition (4.117 AU)
    Mar 01 - 30th Anniversary (1988), Trebbin Meteorite Fall (Hit Greenhouse in East Germany)
    Mar 01 - Richard Price's 75th Birthday (1943)
    Mar 02 - Comet 190P/Mueller At Opposition (3.887 AU)
    Mar 02 - Comet 193P/LINEAR-NEAT At Opposition (3.987 AU)
    Mar 02 - Comet C/2016 T2 (Matheny) At Opposition (4.038 AU)
    Mar 03 - Asteroid 3530 Hammel Closest Approach To Earth (1.952 AU)
    Mar 03 - Asteroid 9661 Hohmann Closest Approach To Earth (3.894 AU)
    Mar 03 - Brian Cox's 50th Birthday (1968)
    Mar 03 - 155th Anniversary (1863), Creation of the National Academy of Sciences
    Mar 04 - Comet 127P/Holt-Olmstead At Opposition (3.212 AU)
    Mar 04 - Asteroid 2675 Tolkien Closest Approach To Earth (1.424 AU)
    Mar 04 - Asteroid 132524 APL Closest Approach To Earth (2.216 AU)
    Mar 04 - Patrick Moore's 95th Birthday (1923)
    Mar 04 - Kuiper Belt Object 2013 FZ27 At Opposition (47.370 AU)
    Mar 05 - Mercury Passes 1.4 Degrees From Venus
    Mar 05 - Moon Occults Asteroid 21 Lutetia
    Mar 05 - Asteroid 2791 Paradise Closest Approach To Earth (1.048 AU)
    Mar 05 - Apollo Asteroid 38086 Beowolf Closest Approach To Earth (1.555 AU)
    Mar 05 - Asteroid 716 Berkeley Closest Approach To Earth (1.637 AU)
    Mar 05 - Asteroid 9954 Brachiosaurus Closest Approach To Earth (1.886 AU)
    Mar 05 - Asteroid 10916 Okina-Ouna Closest Approach To Earth (1.907 AU)
    Mar 05 - Asteroid 39382 Opportunity Closest Approach To Earth (2.991 AU)
    Mar 05 - 15th Anniversary (2003), Inauguration of ESA's 1st Deep Space Ground
    Station at New Nocia
    Mar 05 - 50th Anniversary (1968), Solrad 9 Launch (Sun Observer)
    Mar 05 - Valery Korzun's 65th Birthday (1953)
    Mar 06 - Asteroid 250840 Motorhead Closest Approach To Earth (2.150 AU)
    Mar 06 - Asteroid 742 Edisona Closest Approach To Earth (2.401 AU)
    Mar 06 - Carolyn Porco's 65th Birthday (1953)
    Mar 07 - Comet P/2015 TO19 (Lemmon-PANSTARRS) At Opposition (3.694 AU)
    Mar 07 - Comet 225P/LINEAR At Opposition (3.612 AU)
    Mar 07 - Comet 284P/McNaught At Opposition (4.064 AU)
    Mar 07 - Aten Asteroid 2003 EM1 Near-Earth Flyby (0.043 AU)
    Mar 07 - Asteroid 386622 New Zealand Closest Approach To Earth (1.670 AU)
    Mar 07 - Asteroid 70783 Kenwilliams Closest Approach To Earth (1.797 AU)
    Mar 07 - Asteroid 4151 Alanhale Closest Approach To Earth (1.743 AU)
    Mar 07 - Asteroid 617 Patroclus Closest Approach To Earth (5.001 AU)
    Mar 07 - Kuiper Belt Object 2013 FY27 At Opposition (79.120 AU)
    Mar 07 - Alan Hale's 60th Birthday (1958)
    Mar 08 - Comet P/2015 TP200 (LINEAR) At Opposition (3.658 AU)
    Mar 08 - Comet C/2017 D3 (ATLAS) Closest Approach To Earth (4.583 AU)
    Mar 08 - Apollo Asteroid 2015 FM34 Near-Earth Flyby (0.058 AU)
    Mar 08 - Asteroid 40227 Tahiti Closest Approach To Earth (3.858 AU)
    Mar 09 - Comet P/2005 J1 (McNaught) Closest Approach To Earth (1.822 AU)
    Mar 09 - Comet 93P/Lovas At Opposition (2.638 AU)
    Mar 09 - Asteroid 9548 Fortran Closest Approach To Earth (1.228 AU)
    Mar 09 - Asteroid 73491 Robmatson Closest Approach To Earth (1.381 AU)
    Mar 09 - Asteroid 25930 Spielberg Closest Approach To Earth (1.566 AU)
    Mar 09 - Richard Walker's 80th Birthday (1938)
    Mar 10 - Apollo Asteroid 2015 DK200 Near-Earth Flyby (0.018 AU)
    Mar 10 - Apollo Asteroid 2003 DY15 Near-Earth Flyby (0.058 AU)
    Mar 10 - Aten Asteroid 2007 CM26 Near-Earth Flyby (0.070 AU)
    Mar 10 - Asteroid 10221 Kubrick Closest Approach To Earth (1.373 AU)
    Mar 10 - Asteroid 12258 Oscarwilde Closest Approach To Earth (1.466 AU)
    Mar 10 - Asteroid 3948 Bohr Closest Approach To Earth (1.609 AU)
    Mar 10 - Asteroid 397278 Arvidson Closest Approach To Earth (1.784 AU)
    Mar 10 - Asteroid 1495 Helsinki Closest Approach To Earth (1.801 AU)
    Mar 10 - Asteroid 8120 Kobe Closest Approach To Earth (1.883 AU)
    Mar 10 - Asteroid 4327 Ries Closest Approach To Earth (2.432 AU)
    Mar 10 - Asteroid 189202 Calar Alto Closest Approach To Earth (2.340 AU)
    Mar 11 - Daylight Saving - Set Clock Ahead 1 Hour (United States)
    Mar 11 - Apollo Asteroid 2102 Tantalus Closest Approach To Earth (2.033 AU)
    Mar 11 - 10th Anniversary (2008), STS-123 Launch (Space Shuttle Endeavour, International Space Station)
    Mar 12 - Comet 74P/Smirnova-Chernykh At Opposition (2.556 AU)
    Mar 12 - Comet C/2016 N6 (PANSTARRS) Closest Approach To Earth (2.602 AU)
    Mar 12 - Comet C/2015 V4 (PANSTARRS) Closest Approach To Earth (5.445 AU)
    Mar 12 - Apollo Asteroid 2013 RZ73 Near-Earth Flyby (0.055 AU)
    Mar 12 - Aten Asteroid 398188 Agni Closest Approach To Earth (0.292 AU)
    Mar 12 - Asteroid 35334 Yarkovsky Closest Approach To Earth (2.032 AU)
    Mar 12 - Apollo Asteroid 1866 Sisyphus Closest Approach To Earth (2.206 AU)
    Mar 12 - Asteroid 697 Galilea Closest Approach To Earth (2.346 AU)
    Mar 12 - Wally Schirra's 85th Birthday (1923)
    Mar 12 - John Theophile Desaguliers' 335th Birthday (1683)
    Mar 13 - Comet 74P/Smirnova-Chernykh Closest Approach To Earth (2.556 AU)
    Mar 14 - Pi Day
    Mar 14 - Moon Occults Asteroid 433 Eros
    Mar 14 - Asteroid 8925 Boattini Closest Approach To Earth (1.152 AU)
    Mar 14 - Asteroid 48472 Mossbauer Closest Approach To Earth (1.186 AU)
    Mar 14 - Aten Asteroid 367943 Duende Closest Approach To Earth (1.212 AU)
    Mar 14 - Asteroid 24101 Cassini Closest Approach To Earth (1.688 AU)
    Mar 14 - Frank Borman's 90th Birthday (1928)
    Mar 15 - Mercury At Its Greatest Eastern Elongation (18 Degrees)
    Mar 15 - Comet 125P/Spacewatch Closest Approach To Earth (1.243 AU)
    Mar 15 - Comet P/2012 K3 (Gibbs) At Opposition (2.875 AU)
    Mar 15 - Comet 257P/Catalina At Opposition (4.018 AU)
    Mar 15 - Comet P/2006 F1 (Kowalski) Perihelion (4.108 AU)
    Mar 15 - Comet C/2017 D3 (ATLAS) At Opposition (4.594 AU)
    Mar 15 - Comet C/2016 E1 (PANSTARRS) Closest Approach To Earth (7.650 AU)
    Mar 15 - Asteroid 10093 Diesel Closest Approach To Earth (1.484 AU)
    Mar 15 - 45th Anniversary (1973), San Juan Capistrano Meteorite Fall in California (Hit Carport Roof)
    Mar 15 - 185th Anniversary (1833), Jons Berzelius' Discovery of Carbon-based Organic Minerals in the Alais Meteorite
    Mar 16 - Comet 62P/Tsuchinshan Closest Approach To Earth (1.024 AU)
    Mar 16 - Comet P/2015 X1 (PANSTARRS) At Opposition (3.828 AU)
    Mar 16 - Asteroid 3494 Purple Mountain Closest Approach To Earth (1.565 AU)
    Mar 16 - Asteroid 371 Bohemia Closest Approach To Earth (1.747 AU)
    Mar 16 - Asteroid 325 Heidelberga Closest Approach To Earth (2.451 AU)
    Mar 16 - Frederick Reines' 100th Birthday (1918)
    Mar 16 - Heinrich Kayser's 165th Birthday (1853)
    Mar 17 - Comet 103P/Hartley At Opposition (2.500 AU)
    Mar 17 - Asteroid 26858 Misterrogers Closest Approach To Earth (1.140 AU)
    Mar 17 - Asteroid 15000 CCD Closest Approach To Earth (1.590 AU)
    Mar 17 - Asteroid 2187 La Silla Closest Approach To Earth (1.856 AU)
    Mar 17 - Asteroid 1278 Kenya Closest Approach To Earth (1.986 AU)
    Mar 17 - Asteroid 6701 Warhol Closest Approach To Earth (1.994 AU)
    Mar 17 - Asteroid 316201 Malala Closest Approach To Earth (2.124 AU)
    Mar 17 - 60th Anniversary (1958), Vanguard 1 Launch
    Mar 18 - Mercury Passes 3.9 Degrees From Venus
    Mar 18 - Comet 346P/Catalina At Opposition (2.725 AU)
    * Mar 18 - Comet 235P/LINEAR Perihelion (2.732 AU)
    Mar 18 - Comet 314P/Montani Closest Approach To Earth (4.053 AU)
    Mar 18 - Comet C/2016 E1 (PANSTARRS) At Opposition (7.651 AU)
    Mar 18 - Asteroid 6136 Gryphon Closest Approach To Earth (2.009 AU)
    Mar 19 - Comet 73P-Y/Schwassmann-Wachmann Closest Approach To Earth (1.558 AU)
    Mar 19 - Comet P/2012 O2 (McNaught) At Opposition (2.706 AU)
    Mar 19 - Asteroid 28600 Georgelucas Closest Approach To Earth (1.584 AU)
    Mar 19 - Asteroid 24663 Philae Closest Approach To Earth (1.675 AU)
    * Mar 20 - Transiting Expoplanet Survyey Satellite (TESS) Falcon 9 Launch
    Mar 20 - Vernal Equinox, 16:15 UT
    Mar 20 - Comet 235P/LINEAR At Opposition (1.740 AU)
    Mar 20 - Comet 61P/Shajn-Schaldach At Opposition (3.901 AU)
    Mar 20 - Comet C/2015 V4 (PANSTARRS) At Opposition (5.456 AU)
    Mar 20 - Comet C/2016 C1 (PANSTARRS) Closest Approach To Earth (8.585 AU)
    Mar 20 - Aten Asteroid 326290 Akhenaten Closest Approach To Earth (1.187 AU)
    Mar 20 - Asteroid 1430 Somalia Closest Approach To Earth (1.934 AU)
    Mar 21 - Comet 235P/LINEAR Closest Approach To Earth (1.740 AU)
    Mar 21 - Apollo Asteroid 1981 Midas Near-Earth Flyby (0.090 AU)
    Mar 21 - Asteroid 45 Eugenia Closest Approach To Earth (1.596 AU)
    Mar 21 - Asteroid 305254 Moron Closest Approach To Earth (1.883 AU)
    Mar 21 - Jean-Baptiste Joseph Fourier's 250th Birthday (1768)
    Mar 22 - Moon Occults Aldebaran
    Mar 22 - Comet 226P/Pigott-LINEAR-Kowalski At Opposition (3.571)
    Mar 22 - Comet P/2005 T2 (Christensen) At Opposition (3.630 AU)
    Mar 22 - Aten Asteroid 2011 GP44 Near-Earth Flyby (0.056 AU)
    Mar 22 - Asteroid 9963 Sandage Closest Approach To Earth (2.098 AU)
    Mar 22 - Asteroid 11739 Baton Rouge Closest Approach To Earth (3.830 AU)
    Mar 22 - 20th Anniversary (1998), Monahans Meteorite Fall (Hit Basketball Court in Texas)
    Mar 22 - Robert Millikan's 150th Birthday (1868)
    Mar 22 - Alfred Fowler's 150th Birthday (1868)
    Mar 23 - Comet 73P-T/Schwassmann-Wachmann Perihelion (0.950 AU)
    Mar 23 - Comet 306P/LINEAR At Opposition (3.569 AU)
    Mar 23 - Comet 17P/Holmes At Opposition (4.122 AU)
    Mar 23 - Apollo Asteroid 267940 (2004 EM20) Near-Earth Flyby (0.096 AU) .
    Mar 23 - Asteroid 9395 Saint Michel Closest Approach To Earth (1.362 AU)
    Mar 23 - Asteroid 25137 Seansolomon Closest Approach To Earth (1.425 AU)
    Mar 23 - Asteroid 65675 Mohr-Gruber Closest Approach To Earth (1.770 AU)
    Mar 24 - Comet P/2011 VJ5 (Lemmon) Perihelion (1.508 AU)
    Mar 24 - Asteroid 72432 Kimrobinson Closest Approach To Earth (1.306 AU)
    Mar 24 - 25th Anniversary (1993), Discovery of Comet Shoemaker-Levy 9
    Mar 24 - 85th Anniversary (1933), Pasamonte Meteorite Shower in New Mexico
    Mar 24 - Walter Baade's 125th Birthday (1893)
    Mar 25 - European Summer Time - Set Clock Ahead 1 Hour (European Union)
    Mar 25 - Aten Asteroid 2017 FZ2 Near-Earth Flyby (0.071 AU)
    Mar 25 - Asteroid 9249 Yen Closest Approach To Earth (1.272 AU)
    Mar 25 - Asteroid 274301 Wikipedia Closest Approach To Earth (1.644 AU)
    Mar 25 - Asteroid 1024 Hale Closest Approach To Earth (2.547 AU)
    Mar 25 - Neptune Trojan 316179 (2010 EN65) At Opposition (25.260 AU)
    Mar 25 - Dwarf Planet 136472 Makemake At Opposition (51.640 AU)
    Mar 25 - 35th Anniversary (1983), Michael Jackson's Moonwalk Debut (Pasadena Civic Auditorium)
    Mar 25 - James Lovell's 90th Birthday (1928)
    Mar 25 - Kenneth Franklin's 95th Birthday (1923)
    Mar 25 - Christopher Clavius' 480th Birthtday (1538)
    Mar 26 - Comet 183P/Korlevic-Juric Closest Approach To Earth (2.899 AU)
    Mar 26 - Comet 314P/Montani At Opposition (4.062 AU)
    Mar 26 - Asteroid 19911 Rigaux Closest Approach To Earth (1.195 AU)
    Mar 26 - Asteroid 2625 Jack London Closest Approach To Earth (1.319 AU)
    Mar 26 - Asteroid 3018 Godiva Closest Approach To Earth (1.546 AU)
    Mar 26 - 15th Anniversary (2003), Park Forest Meteorite Shower (Hit Houses in
    Illinois)
    Mar 26 - Nathaniel Bowditch's 245th Birthday (1773)
    Mar 27 - Comet 300P/Catalina At Opposition (1.661 AU)
    * Mar 27 - Comet 183P/Korlevic-Juric At Opposition (2.899 AU)
    Mar 27 - Comet P/2007 S1 (Zhao) At Opposition (3.932 AU)
    Mar 27 - Comet P/2010 TO20 (LINEAR-Grauer) At Opposition (4.990 AU)
    Mar 27 - Comet C/2016 C1 (PANSTARRS) At Opposition (8.593 AU)
    Mar 27 - Apollo Asteroid 2004 EU22 Near-Earth Flyby (0.084 AU)
    Mar 27 - Asteroid 96192 Calgary Closest Approach To Earth (1.606 AU)
    Mar 27 - Asteroid 4636 Chile Closest Approach To Earth (2.022 AU)
    Mar 28 - Moon Occults Regulus
    Mar 28 - Comet P/2005 JN (Spacewatch) At Opposition (1.423 AU)
    Mar 28 - Comet P/2012 K3 (Gibbs) Closest Approach To Earth (2.848 AU)
    Mar 28 - Apollo Asteroid 2016 SR2 Near-Earth Flyby (0.048 AU)
    Mar 28 - Apollo Asteroid 2013 QM48 Near-Earth Flyby (0.087 AU)
    Mar 28 - Aten Asteroid 2003 FY6 Near-Earth Flyby (0.095 AU)
    Mar 28 - Asteroid 3130 Hillary Closest Approach To Earth (1.952 AU)
    Mar 28 - Centaur Object 31824 Elatus At Opposition (15.297 AU)
    Mar 29 - Venus Passes 0.7 Degrees From Uranus
    Mar 29 - Comet 50P/Arend At Opposition (4.157 AU)
    Mar 29 - Comet P/2010 TO20 (LINEAR-Grauer) Closest Approach To Earth (4.989 AU)
    Mar 29 - Asteroid 3590 Holst Closest Approach To Earth (1.181 AU)
    Mar 29 - Asteroid 114703 North Dakota Closest Approach To Earth (1.845 AU)
    Mar 29 - 20th Anniversary (1998), Galileo, Europa 14 Flyby
    Mar 29 - Tullio Levi-Civita's 145th Birthday (1873)
    Mar 30 - Soyuz MS-8 Soyuz-FG Launch (International Space Station 54S)
    Mar 30 - Comet 312P/NEAT At Opposition (3.803 AU)
    Mar 30 - Comet P/2014 U4 (PANSTARRS) At Opposition (4.079 AU)
    * Mar 30 - Apollo Asteroid 37655 Illapa Closest Approach To Earth (0.283 AU)
    Mar 30 - Asteroid 9537 Nolan Closest Approach To Earth (1.388 AU)
    Mar 30 - Asteroid 4864 Nimoy Closest Approach To Earth (1.833 AU)
    Mar 30 - Asteroid 3714 Kenrussell Closest Approach To Earth (1.868 AU)
    Mar 30 - Asteroid 1801 Titicaca Closest Approach To Earth (2.076 AU)
    Mar 30 - Asteroid 249521 Truth Closest Approach To Earth (2.371 AU)
    Mar 31 - Comet 105P/Singer Brewster At Opposition (1.276 AU)
    * Mar 31 - Comet C/2017 F2 (PANSTARRS) Closest Approach To Earth (6.120 AU)
    Mar 31 - Apollo Asteroid 2001 FA58 Near-Earth Flyby (0.097 AU)
    Mar 31 - Aten Asteroid 2010 GD35 Near-Earth Flyby (0.040 AU)
    Mar 31 - Asteroid 4763 Ride Closest Approach To Earth (1.405 AU)
    Mar 31 - Asteroid 784 Pickeringia Closest Approach To Earth (1.712 AU)
    Mar 31 - Asteroid 9133 d'Arrest Closest Approach To Earth (2.082 AU)
    Mar 31 - Asteroid 9252 Goddard Closest Approach To Earth (2.580 AU)
    Mar 31 - 80th Anniversary (1938), Kasamatsu Meteorite Fall (Hit House in Japan)

    April 2018
    Apr ?? - Iridium Next 61-70 Falcon 9 Launch
    * Apr ?? - CRS-15 Falcon 9 Launch
    Apr 01 - Easter Sunday
    Apr 01 - Moon Occults Asteroid 21 Lutetia
    Apr 01 - Apollo Asteroid 2007 RX8 Near-Earth Flyby (0.085 AU)
    Apr 01 - Asteroid 100000 Astronautica Closest Approach To Earth (1.067 AU)
    Apr 01 - Aten Asteroid 3554 Amun Closest Approach To Earth (1.115 AU)
    Apr 01 - Apollo Asteroid 12923 Zephyr Closest Approach To Earth (1.367 AU)
    Apr 01 - Sergey Volkov's 45th Birthday (1973)
    Apr 02 - Mars Passes 1.3 Degrees From Saturn
    Apr 02 - Comet 73P-S/Schwassmann-Wachmann Closest Approach To Earth (1.178 AU)
    Apr 02 - Comet 316P/LONEOS-Christensen Closest Approach To Earth (3.533 AU)
    * Apr 02 - Comet C/2017 F2 (PANSTARRS) At Opposition (6.120 AU)
    Apr 02 - Aten Asteroid 2004 FG29 Near-Earth Flyby (0.010 AU)
    Apr 02 - Asteroid 16260 Sputnik Closest Approach To Earth (1.866 AU)
    Apr 02 - 55th Anniversary (1963), Luna 4 Launch (Soviet Moon Flyby Mission)
    Apr 02 - Francesco Grimaldi's 400th Birthday (1618)
    Apr 03 - Moon Occults Asteroid 16 Psyche
    Apr 03 - Asteroid 9995 Alouette Closest Approach To Earth (1.047 AU)
    Apr 03 - Asteroid 391257 Wilwheaton Closest Approach To Earth (1.808 AU)
    Apr 03 - Asteroid 96193 Edmonton Closest Approach To Earth (1.898 AU)
    Apr 03 - Asteroid 4804 Pasteur Closest Approach To Earth (2.025 AU)
    Apr 03 - Asteroid 63800 Richardnorton Closest Approach To Earth (2.106 AU)
    Apr 03 - Asteroid 12432 Usuda Closest Approach To Earth (2.160 AU)
    Apr 03 - Asteroid 1877 Marsden Closest Approach To Earth (3.102 AU)
    Apr 03 - 45th Anniversary (1973), Salyut 2 Launch (USSR's 2nd Space Station)
    Apr 04 - 50th Anniversary (1968), Apollo 6 Launch (Last Test Flight of Saturn
    V)
    Apr 04 - Asteroid 16543 Rosetta Closest Approach To Earth (1.534 AU)
    Apr 04 - Asteroid 2807 Karl Marx Closest Approach To Earth (1.607 AU)
    Apr 04 - 35th Anniversary (1983), STS-6 Launch (Space Shuttle Challenger, 1st
    EVA)
    Apr 04 - Joseph Ashbrook's 100th Birthday (1918)
    Apr 05 - Comet C/2015 O1 (PANSTARRS) Closest Approach To Earth (3.233 AU)
    Apr 05 - Asteroid 5261 Eureka (Mars Trojan) Closest Approach To Earth (0.722 AU)
    * Apr 05 - Atira Asteroid 2015 DR215 Closest Approach To Earth (0.970 AU)
    Apr 05 - Asteroid 4871 Riverside Closest Approach To Earth (1.465 AU)
    Apr 05 - Asteroid 1777 Gehrels Closest Approach To Earth (1.626 AU)
    Apr 05 - Asteroid 1071 Brita Closest Approach To Earth (1.913 AU)
    Apr 05 - 45th Anniversary (1973), Pioneer 11 Launch (Jupiter & Saturn Flyby Mission)
    Apr 06 - Comet 316P/LONEOS-Christensen At Opposition (3.535 AU)
    Apr 06 - Comet P/2006 H1 (McNaught) At Opposition (3.943 AU)
    Apr 06 - Asteroid 35352 Texas Closest Approach To Earth (1.490 AU)
    Apr 06 - Asteroid 12561 Howard Closest Approach To Earth (1.672 AU)
    Apr 06 - Asteroid 2068 Dangreen Closest Approach To Earth (2.007 AU)
    Apr 06 - Asteroid 11945 Amsterdam Closest Approach To Earth (2.280 AU)
    Apr 06 - 10th Anniversary (2008), Berduc Meteorite Fall (Hit Building in Argentina)
    Apr 06 - Franck Marchis' 45th Birthday (1973)
    Apr 07 - 50th Anniversary (1968), Luna 14 Launch (Soviet Moon Orbiter Mission)
    Apr 07 - Comet P/2005 JN (Spacewatch) Closest Approach To Earth (1.410 AU)
    Apr 07 - Comet P/2006 S1 (Christensen) At Opposition (3.437 AU)
    Apr 07 - Asteroid 2511 Patterson Closest Approach To Earth (1.266 AU)
    Apr 07 - Asteroid 163693 Atira Closest Approach To Earth (1.363 AU)
    Apr 07 - 35th Anniversary (1983), 1st Spacewalk from Space Shuttle (Story Musgrave, Don Peterson, STS-6)
    Apr 08 - Comet 143P/Kowal-Mrkos At Opposition (1.542 AU)
    Apr 08 - Comet P/2012 O2 (McNaught) Closest Approach To Earth (2.652 AU)
    Apr 08 - Comet C/2015 O1 (PANSTARRS) At Opposition (3.243 AU)
    Apr 08 - Comet C/2016 T1 (Matheny) At Opposition (4.192 AU)
    Apr 08 - Comet 196P/Tichy At Opposition (4.204 AU)
    Apr 08 - Asteroid 1198 Atlantis Closest Approach To Earth (1.845 AU)
    Apr 08 - Apollo Asteroid 4179 Toutatis Closest Approach To Earth (2.817 AU)
    Apr 08 - Kuiper Belt Object 2014 FT71 At Opposition (46.680 AU)
    Apr 08 - 25th Anniversary (1993), STS-56 Launch (Space Shuttle Discovery, ATLAS-2)
    Apr 08 - Karl Hencke's 225th Birthday (1793)
    Apr 09 - Asteroid 75564 Audubon Closest Approach To Earth (1.063 AU)
    Apr 09 - Kuiper Belt Object 2013 FS28 At Opposition (83.812 AU)
    Apr 10 - Comet 222P/LINEAR At Opposition (2.922 AU)
    Apr 10 - Comet 68P/Klemola At Opposition (3.857 AU)
    Apr 10 - Asteroid 10799 Yucatan Closest Approach To Earth (1.913 AU)
    Apr 11 - Comet 143P/Kowal-Mrkos Closest Approach To Earth (1.541 AU)
    Apr 11 - Comet C/2016 A3 (PANSTARRS) Closest Approach To Earth (4.095 AU)
    Apr 11 - Apollo Asteroid 2008 GY21 Near-Earth Flyby (0.026 AU)
    Apr 11 - Asteroid 6524 Baalke Closest Approach To Earth (1.657 AU)
    Apr 11 - Asteroid 1776 Kuiper Closest Approach To Earth (2.095 AU)
    Apr 11 - Asteroid 13330 Dondavis Closest Approach To Earth (2.364 AU)
    Apr 11 - Macedonio Melloni's 220th Birthday (1798)
    Apr 12 - International Day of Human Space Flight
    Apr 12 - Yuri's Night: World Space Party
    Apr 12 - Comet P/2012 T1 (PANSTARRS) Perihelion (2.402 AU)
    Apr 12 - Comet 224P/LINEAR-NEAT At Opposition (3.261 AU)
    Apr 12 - Apollo Asteroid 363599 (2004 FG11) Near-Earth Flyby (0.049 AU)
    Apr 12 - Asteroid 443 Photographica Closest Approach To Earth (1.142 AU)
    Apr 12 - Asteroid 52246 Donaldjohanson Closest Approach To Earth (1.315 AU)
    Apr 12 - Asteroid 17024 Costello Closest Approach To Earth (1.405 AU)
    Apr 12 - Asteroid 166614 Zsazsa Closest Approach To Earth (1.639 AU)
    Apr 12 - Asteroid 9937 Triceratops Closest Approach To Earth (1.908 AU)
    Apr 12 - Asteroid 1537 Transylvania Closest Approach To Earth (2.964 AU)
    Apr 12 - 10th Anniversary (2008), Zunhua Meteorite Fall (Hit Farmhouse in China)
    Apr 12 - 50th Anniversary (1968), Schenectady Meteorite Fall (Hit House in New York)
    Apr 13 - Comet 105P/Singer Brewster Closest Approach To Earth (1.254 AU)
    Apr 13 - Comet P/2007 R2 (Gibbs) At Opposition (4.187 AU)
    Apr 13 - Aten Asteroid 2005 GZ128 Near-Earth Flyby (0.074 AU)
    Apr 13 - Apollo Asteroid 2013 GF84 Near-Earth Flyby (0.077 AU)
    Apr 13 - Asteroid 27363 Alvanclark Closest Approach To Earth (1.794 AU)
    Apr 13 - Asteroid 1958 Chandra Closest Approach To Earth (2.167 AU)
    Apr 13 - Thomas Jefferson's 175th Birthday (1843)
    Apr 14 - Comet 186P/Garradd At Opposition (3.634 AU)
    Apr 14 - Comet 158P/Kowal-LINEAR At Opposition (3.892 AU)
    Apr 14 - Aten Asteroid 2014 UR Near-Earth Flyby (0.024 AU)
    Apr 14 - Asteroid 3061 Cook Closest Approach To Earth (2.513 AU)
    Apr 14 - Asteroid 4169 Celsius Closest Approach To Earth (2.974 AU)
    Apr 15 - Comet 30P/Reinmuth Closest Approach To Earth (1.769 AU)
    Apr 15 - Comet P/2017 D1 (Fuls) At Opposition (3.734 AU)
    Apr 15 - Comet 158P/Kowal-LINEAR Closest Approach To Earth (3.892 AU)
    Apr 15 - Comet C/2016 A3 (PANSTARRS) At Opposition (4.097 AU)
    Apr 15 - Apollo Asteroid 2016 GB222 Near-Earth Flyby (0.074 AU)
    Apr 15 - Asteroid 1997 Leverrier Closest Approach To Earth (1.591 AU)
    Apr 15 - Asteroid 4342 Freud Closest Approach To Earth (1.850 AU)
    Apr 15 - Dwarf Planet 136108 Haumea At Opposition (49.617 AU)
    Apr 15 - Hermann Kohl's 130th Birthday (1888)
    Apr 16 - Progress MS-10 Soyuz-2.1a Launch (International Space Station 71P)
    Apr 16 - Asteroid 2712 Keaton Closest Approach To Earth (1.120 AU)
    Apr 16 - Asteroid 1001 Gaussia Closest Approach To Earth (2.603 AU)
    Apr 17 - Asteroid 21 Lutetia Closest Approach To Earth (1.644 AU)
    Apr 17 - 20th Anniversary (1998), STS-90 Launch (Space Shuttle Columbia, Spacelab)
    Apr 18 - Comet 62P/Tsuchinshan At Opposition (1.129 AU)
    Apr 18 - Comet 186P/Garradd Closest Approach To Earth (3.632 AU)
    Apr 18 - Asteroid 6312 Robheinlein Closest Approach To Earth (1.272 AU)
    Apr 19 - Moon Occults Aldebaran
    Apr 19 - Comet 160P/LINEAR At Opposition (3.427 AU)
    Apr 19 - Comet P/2015 Q1 (Scotti) At Opposition (3.995 AU)
    Apr 19 - Apollo Asteroid 2014 JG15 Near-Earth Flyby (0.050 AU)
    Apr 19 - Apollo Asteroid 2015 HD10 Near-Earth Flyby (0.098 AU)
    Apr 19 - Asteroid 42776 Casablanca Closest Approach To Earth (2.039 AU)
    Apr 19 - Asteroid 193 Ambrosia Closest Approach To Earth (2.129 AU)
    Apr 19 - 5th Anniversary (2013), Wolcott Meteorite Fall (Hit House in Connecticut)
    Apr 20 - Comet P/2000 R2 (LINEAR) At Opposition (2.634 AU)
    Apr 20 - Comet 162P/Siding Spring At Opposition (3.884 AU)
    Apr 20 - Aten Asteroid 2016 JP Near-Earth Flyby (0.031 AU)
    Apr 20 - Apollo Asteroid 2010 JO33 Near-Earth Flyby (0.060 AU)
    Apr 20 - Asteroid 25399 Vonnegut Closest Approach To Earth (1.454 AU)
    Apr 20 - Asteroid 234750 Amymainzer Closest Approach To Earth (2.436 AU)
    Apr 20 - Asteroid 2906 Caltech Closest Approach To Earth (2.645 AU)
    Apr 20 - Kai Seigbahn's 100th Birthday (1918)
    Apr 21 - Comet 24P/Schaumasse Closest Approach To Earth (1.334 AU)
    Apr 21 - Comet P/2008 QP20 (LINEAR-Hill) At Opposition (4.245 AU)
    Apr 21 - Asteroid 4457 van Gogh Closest Approach To Earth (1.416 AU)
    Apr 21 - Asteroid 39415 Janeausten Closest Approach To Earth (2.675 AU)
    Apr 22 - Earth Day
    Apr 22 - Lyrids Meteor Shower Peak
    Apr 22 - Asteroid 52301 Qumran Closest Approach To Earth (1.839 AU)
    Apr 22 - Asteroid 11246 Orvillewright Closest Approach To Earth (1.882 AU)
    Apr 22 - Asteroid 2097 Galle Closest Approach To Earth (2.674 AU)
    Apr 22 - Miguel Hurtado's 40th Birthday (1978)
    Apr 23 - Comet 300P/Catalina Closest Approach To Earth (1.563 AU)
    Apr 23 - Comet P/2012 O1 (McNaught) At Opposition (2.177 AU)
    Apr 23 - Comet 147P/Kushida-Muramatsu At Opposition (3.301 AU)
    Apr 23 - Aten Asteroid 2012 XL16 Near-Earth Flyby (0.041 AU)
    Apr 23 - Apollo Asteroid 2015 XF352 Near-Earth Flyby (0.090 AU)
    Apr 23 - Asteroid 232 Russia Closest Approach To Earth (1.114 AU)
    Apr 23 - Asteroid 19367 Pink Floyd Closest Approach To Earth (1.842 AU)
    Apr 23 - Asteroid 6001 Thales Closest Approach To Earth (1.862 AU)
    Apr 23 - Asteroid 5000 IAU Closest Approach To Earth (2.201 AU)
    Apr 23 - Max Planck's 160th Birthday (1858)
    Apr 24 - Moon Occults Regulus
    Apr 24 - Asteroid 7986 Romania Closest Approach To Earth (0.969 AU)
    * Apr 24 - Kuiper Belt Object 42355 Typhon At Opposition (20.615 AU)
    Apr 25 - Comet 169P/NEAT Closest Approach To Earth (1.604 AU)
    * Apr 25 - Comet 222P/LINEAR Closest Approach To Earth (2.885 AU)
    Apr 25 - Comet 33P/Daniel At Opposition (3.393 AU)
    Apr 25 - Comet P/2003 T12 (SOHO) At Opposition (3.582 AU)
    Apr 25 - Comet C/2017 B3 (LINEAR) At Opposition (3.972 AU)
    * Apr 25 - Apollo Asteroid 4581 Asciepius Closest Approach To Earth (0.293 AU)
    Apr 25 - Asteroid 3350 Scobee Closest Approach To Earth (1.441 AU)
    Apr 25 - Asteroid 17023 Abbott Closest Approach To Earth (1.447 AU)
    Apr 25 - Asteroid 6123 Aristoteles Closest Approach To Earth (1.449 AU)
    Apr 25 - Asteroid 268242 Pebble Closest Approach To Earth (1.497 AU)
    Apr 25 - Asteroid 827 Wolfiana Closest Approach To Earth (1.587 AU)
    Apr 25 - Asteroid 21564 Widmanstatten Closest Approach To Earth (2.663 AU)
    Apr 26 - Comet 334P/NEAT Closest Approach To Earth (3.583 AU)
    Apr 26 - Comet C/2017 E3 (PANSTARRS) Closest Approach To Earth (5.355 AU)
    Apr 26 - Amor Asteroid 450648 (2006 UC63) Near-Earth Flyby (0.082 AU)
    Apr 26 - 20th Anniversary (1998), Cassini, Venus Flyby
    Apr 26 - 25th Anniversary (1993), STS-55 Launch (Space Shuttle Columbia, Spacelab-D2)
    Apr 26 - Anro Penzias' 85th Birthday (1933)
    Apr 26 - 170th Anniversary (1848), Andrew Graham's Discovery of Asteroid 9 Metis
    Apr 26 - 215th Anniversary (1803), L'Aigle Meteorite Shower (Hit House in France)
    Apr 27 - Comet P/2011 CR42 (Catalina) At Opposition (1.539 AU)
    Apr 27 - Comet 313P/Gibbs At Opposition (2.713 AU)
    Apr 27 - Apollo Asteroid 444193 (2005 SE71) Near-Earth Flyby (0.062 AU)
    Apr 27 - Amor Asteroid 194126 (2001 SG276) Near-Earth Flyby (0.084 AU)
    Apr 27 - Asteroid 3773 Smithsonian Closest Approach To Earth (1.424 AU)
    Apr 27 - Asteroid 8146 Jimbell Closest Approach To Earth (1.955 AU)
    Apr 27 - Philip Abelson's 105th Birthday (1913)
    Apr 28 - Moon Occults Asteroid 21 Lutetia
    Apr 28 - Comet P/2017 B4 (PANSTARRS) Closest Approach To Earth (2.914 AU)
    Apr 28 - Comet 202P/Scotti At Opposition (3.199 AU)
    Apr 28 - Comet 191P/McNaught At Opposition (3.968 AU)
    Apr 28 - Comet P/2008 WZ96 (LINEAR) At Opposition (4.122 AU)
    Apr 28 - Asteroid 1818 Brahms Closest Approach To Earth (1.252 AU)
    Apr 28 - Asteroid 16481 Thames Closest Approach To Earth (2.134 AU)
    Apr 28 - 15th Anniversary (2003), Galaxy Evolution Explorer (GALEX) Launch
    Apr 28 - Eugene Shoemaker's 90th Birthday (1928)
    Apr 28 - Eberhard Rees' 110th Birthday (1908)
    Apr 29 - Mercury At Its Greatest Western Elongation (27 Degrees)
    Apr 29 - Comet 45P/Honda-Mrkos-Pajdusakov At Oppositon (3.554 AU)
    Apr 29 - Comet P/2017 D4 (PANSTARRS) At Opposition (4.139 AU)
    Apr 29 - Apollo Asteroid 2013 US3 Near-Earth Flyby (0.026 AU)
    Apr 29 - Aten Asteroid 2002 JR100 Near-Earth Flyby (0.028 AU)
    Apr 29 - Asteroid 4659 Roddenberry Closest Approach To Earth (1.877 AU)
    Apr 29 - Asteroid 2700 Baikonur Closest Approach To Earth (1.980 AU)
    Apr 29 - Asteroid 4749 Ledzepplin Closest Approach To Earth (2.313 AU)
    Apr 29 - Asteroid 5870 Baltimore Closest Approach To Earth (2.947 AU)
    Apr 29 - Nikolai Budarin's 65th Birthday (1953)
    Apr 29 - Harold Urey's 125th Birthday (1893)
    Apr 30 - Moon Occults Asteroid 16 Psyche
    Apr 30 - Comet 169P/NEAT Perihelion (0.604 AU)
    Apr 30 - Comet C/2015 XY1 (Lemmon) Perihelion (7.928 AU)
    Apr 30 - Asteroid 42981 Jenniskens Closest Approach To Earth (1.176 AU)
    Apr 30 - Asteroid 2801 Huygens Closest Approach To Earth (2.080 AU)
    Apr 30 - Kuiper Belt Object 2014 FC69 At Opposition (83.812 AU)

    May 2018
    * May ?? - SpX-DM2 Falcon 9 Launch (Internationl Space Station)
    * May ?? - GPS 3A-2 Falcon 9 Launch
    * May ?? - BeiDou-3 (M13 & M14) CZ-3C/YZ-1 Launch
    * May ?? - Edward Cooper's 220th Birthday (1798)
    * May 01 - Comet P/2011 CR42 (Catalina) Closest Approach To Earth (1.537 AU)
    * May 01 - Comet 330P/Catalina At Opposition (4.022 AU)
    * May 01 - Asteroid 4330 Vivaldi Closest Approach To Earth (1.319 AU)
    * May 01 - Asteroid 9885 Linux Closest Approach To Earth (1.448 AU)
    * May 01 - Asteroid 5471 Tunguska Closest Approach To Earth (1.879 AU)
    * May 01 - Asteroid 51828 Ilanramon Closest Approach To Earth (2.010 AU)
    * May 01 - Asteroid 13688 Oklahoma Closest Approach To Earth (2.133 AU)
    * May 01 - Asteroid 9860 Archaeopteryx Closest Approach To Earth (2.144 AU)
    * May 01 - 20th Anniversary (1998), Discovery of Dar al Gani 476 Meteorite in Sahara Desert (Mars Meteorite)
    * May 02 - Comet 169P/NEAT At Opposition (1.609 AU)
    * May 02 - Comet 334P/NEAT At Opposition (3.588 AU)
    * May 02 - Asteroid 4047 Chang'E Closest Approach To Earth (1.851 AU)
    * May 02 - Asteroid 16626 Thumper Closest Approach To Earth (1.927 AU)
    * May 02 - Asteroid 2099 Opik Closest Approach To Earth (2.042 AU)
    * May 02 - Kuiper Belt Object 2010 EK139 At Opposition (35.418 AU)
    * May 02 - Robert Wood's 150th Birthday (1868)
    * May 03 - Comet 164P/Christensen At Opposition (2.700 AU)
    * May 03 - Comet 313P/Gibbs Closest Approach To Earth (2.708 AU)
    * May 03 - Comet C/2017 E3 (PANSTARRS) At Opposition (5.364 AU)
    * May 03 - Amor Asteroid 2015 JP Near-Earth Flyby (0.097 AU)
    * May 03 - Asteroid 10866 Peru Closest Approach To Earth (1.193 AU)
    * May 03 - Asteroid 4122 Ferrari Closest Approach To Earth (1.443 AU)
    * May 03 - Asteroid 9134 Encke Closest Approach To Earth (1.908 AU)
    * May 03 - Asteroid 3325 TARDIS Closest Approach To Earth (2.176 AU)
    * May 03 - Asteroid 13677 Alvin Closest Approach To Earth (2.371 AU)
    * May 03 - Asteroid 13897 Vesuvius Closest Approach To Earth (2.956 AU)
    * May 03 - Steven Weinberg's 85th Birthday (1933)
    * May 03 - Ernst Hartwig's 95th Birthday (1923)
    * May 04 - Space Day
    * May 04 - Star Wars Day
    * May 04 - Comet 37P/Forbes Perihelion (1.610 AU)
    * May 04 - Comet 30P/Reinmuth At Opposition (1.816 AU)
    * May 04 - Asteroid 8299 Tealeoni Closest Approach To Earth (0.957 AU)
    * May 04 - Asteroid 17898 Scottsheppard Closest Approach To Earth (1.101 AU)
    * May 04 - Jean-Charles de Borda's 285th Birthday (1733)
    * May 04 - Jean-Philippe de Cheseaux's 300th Birthday (1718)
    * May 05 - InSight/Mars Cube One 1 & 2 Atlas 5 Launch (Mars Lander)
    * May 05 - National Astronaut Day
    * May 05 - Eta Aquarids Meteor Shower Peak
    * May 05 - Asteroid 9342 Carygrant Closest Approach To Earth (1.586 AU)
    * May 05 - Asteroid 12846 Fullerton Closest Approach To Earth (2.093 AU)
    * May 05 - Albert Marth's 190th Birthday (1828)
    * May 06 - Comet 107P/Wilson-Harrington Closest Approach To Earth (1.688 AU)
    * May 06 - Comet 304P/Ory At Opposition (3.926 AU)
    * May 06 - Apollo Asteroid 1685 Toro Closest Approach To Earth (0.972 AU)
    * May 06 - Asteroid 4433 Goldstone Closest Approach To Earth (1.499 AU)
    * May 06 - Asteroid 8283 Edinburgh Closest Approach To Earth (2.035 AU)
    * May 06 - Asteroid 2476 Andersen Closest Approach To Earth (2.210 AU)
    * May 06 - Carl Hergenrother's 45th Birthday (1973)
    * May 06 - Grove Gilbert's 175th Birthday (1843)
    * May 07 - Comet 143P/Kowal-Mrkos Perihelion (2.532 AU)
    * May 07 - Comet P/2000 R2 (LINEAR) Closest Approach To Earth (2.591 AU)
    * May 07 - Comet 350P/McNaught Closest Approach To Earth (2.753 AU)
    * May 07 - Comet 350P/McNaught At Opposition (2.753 AU)
    * May 07 - Comet C/2016 S1 (PANSTARRS) At Opposition (3.266 AU)
    * May 07 - Comet C/2017 A1 (PANSTARRS) At Opposition (3.787 AU)
    * May 07 - Apollo Asteroid 1999 FN19 Near-Earth Flyby (0.025 AU)
    * May 07 - Apollo Asteroid 11311 Peleus Closest Approach To Earth (1.743 AU)
    * May 07 - Kuiper Belt Object 2010 FX86 At Opposition (45.160 AU)
    * May 08 - Comet 253P/PANSTARRS Perihelion (2.037 AU)
    * May 08 - Comet 254P/McNaught At Opposition (4.181 AU)
    * May 08 - Apollo Asteroid 2016 JQ5 Near-Earth Flyby (0.016 AU)
    * May 08 - Asteroid 2709 Sagan Closest Approach To Earth (1.064 AU)
    * May 08 - Asteroid 16857 Goodall Closest Approach To Earth (1.622 AU)
    * May 08 - Apollo Asteroid 3103 Eger Closest Approach To Earth (1.753 AU)
    * May 08 - Centaur Object 144908 (2004 YH32) At Opposition (11.685 AU)
    * May 09 - Jupiter At Opposition
    * May 09 - Comet C/2016 R2 (PANSTARRS) Perihelion (2.602 AU)
    * May 09 - Comet 348P/PANSTARRS Closest Approach To Earth (2.870 AU)
    * May 09 - Comet P/1999 RO28 (LONEOS) At Opposition (2.929 AU)
    * May 09 - Apollo Asteroid 388945 (2008 TZ3) Near-Earth Flyby (0.017 AU)
    * May 09 - Asteroid 12397 Peterbrown Closest Approach To Earth (1.951 AU)
    * May 09 - Asteroid 19155 Lifeson Closest Approach To Earth (2.024 AU)
    * May 09 - Asteroid 12760 Maxwell Closest Approach To Earth (2.136 AU)
    * May 09 - 15th Anniversary (2003), Hayabusa Launch (Japan Asteroid Sample Return Mission)
    * May 10 - Comet P/2017 B4 (PANSTARRS) At Opposition (2.933 AU)
    * May 10 - Comet 260P/McNaught At Opposition (3.169 AU)
    * May 10 - Comet 230P/LINEAR At Opposition (4.175 AU)
    * May 10 - Asteroid 1501 Baade Closest Appraoch To Earth (2.112 AU)
    * May 10 - Asteroid 9357 Venezuela Closest Approach To Earth (2.100 AU)
    * May 10 - Kuiper Belt Object 90568 (2004 GV9) At Opposition (38.560 AU)
    * May 10 - Augustin-Jean Frensel's 230th Birthday (1788)
    * May 11 - Comet 255P/Levy Closest Approach To Earth (2.658 AU)
    * May 11 - Richard Feynman's 100th Birthday (1918)
    * May 12 - Mercury Passes 2.4 Degrees From Uranus
    * May 12 - Comet 168P/Hergenrother At Opposition (3.043 AU)
    * May 12 - Comet 322P/SOHO At Opposition (3.605 AU)
    * May 12 - Asteroid 128523 Johnmuir Closest Approach To Earth (1.774 AU)
    * May 12 - Asteroid 15495 Bogie Closest Approach To Earth (2.117 AU)
    * May 12 - John Hind's 195th Birthday (1823)
    * May 13 - Asteroid 2874 Jim Young Closest Approach To Earth (1.531 AU)
    * May 13 - Asteroid 6336 Dodo Closest Approach To Earth (1.674 AU)
    * May 13 - Asteroid 16 Psyche Closest Approach To Earth (2.234 AU)
    * May 13 - Alexis-Claude Clairaut's 305th Birthday (1713)
    * May 14 - Comet 227P/Catalina-LINEAR Closest Approach To Earth (2.152 AU)
    * May 14 - Comet 348P/PANSTARRS At Opposition (2.874 AU)
    * May 14 - Comet 113P/Spitaler At Opposition (4.203 AU)
    * May 14 - Asteroid 4017 Disneya Closest Approach To Earth (1.663 AU)
    * May 14 - Asteroid 4255 Spacewatch Closest Approach To Earth (2.417 AU)
    * May 14 - Asteroid 580 Selene Closest Approach To Earth (2.470 AU)
    * May 14 - 45th Anniversary (1973), Skylab Launch
    * May 15 - Comet P/2012 O1 (McNaught) Closest Approach To Earth (2.111 AU)
    * May 15 - Comet C/2013 C2 (Tenagra) Closest Approach To Earth (8.818 AU)
    * May 15 - Aten Asteroid 1999 LK1 Near-Earth Flyby (0.034 AU)
    * May 15 - Apollo Asteroid 101955 Bennu Closest Approach To Earth (0.352 AU)
    * May 15 - Asteroid 42998 Malinafrank Closest Approach To Earth (1.226 AU)
    * May 15 - Asteroid 5535 Annefrank Closest Approach To Earth (1.237 AU)
    * May 15 - Asteroid 2045 Peking Closest Approach To Earth (1.255 AU)
    * May 15 - Asteroid 90388 Philchristensen Closest Approach To Earth (1.717 AU) * May 15 - Asteroid 203 Pompeja Closest Approach To Earth (1.886 AU)
    * May 15 - Asteroid 5281 Lindstrom Closest Approach To Earth (2.319 AU)
    * May 15 - Neptune Trojan 2010 TS191 At Opposition (29.677 AU)
    * May 15 - 55th Anniversary (1963), Mercury 9 Launch (Gordon Cooper)
    * May 15 - Nicolas-Louis de Lacaille's 305th Birthtday (1713)
    * May 16 - Moon Occults Aldebaran
    * May 16 - Comet 331P/Gibbs At Opposition (2.113 AU)
    * May 16 - Comet 240P/NEAT Perihelion (2.134 AU)
    * May 16 - Comet 43P/Wolf-Harrington At Opposition (3.589 AU)
    * May 16 - Apollo Asteroid 2015 KJ19 Near-Earth Flyby (0.061 AU)
    * May 16 - Apollo Asteroid 2012 WS3 Near-Earth Flyby (0.095 AU)
    * May 16 - Asteroid 70713 Sethmacfarlane Closest Approach To Earth (1.654 AU)
    * May 16 - Kuiper Belt Object 65407 (2002 RP120) At Opposition (29.547 AU)
    * May 17 - Comet 263P/Gibbs Closest Approach To Earth (1.658 AU)
    * May 17 - Comet 331P/Gibbs Closest Approach To Earth (2.113 AU)
    * May 17 - Comet 11P/Tempel-Swift-LINEAR At Opposition (4.129 AU)
    * May 17 - Asteroid 439 Ohio Closest Approach To Earth (2.325 AU)
    * May 18 - Comet 66P/du Toit Closest Approach To Earth (0.896 AU)
    * May 18 - Comet P/2000 S4 (LINEAR-Spacewatch) At Opposition (3.748 AU)
    * May 18 - Asteroid 4221 Picasso Closest Approach To Earth (1.330 AU)
    * May 18 - Asteroid 6714 Montreal Closest Approach To Earth (1.655 AU)
    * May 18 - Asteroid 3780 Maury Closest Approach To Earth (1.823 AU)
    * May 18 - Asteroid 7749 Jackschmitt Closest Approach To Earth (1.833 AU)
    * May 18 - Asteroid 2169 Taiwan Closest Approach To Earth (1.909 AU)
    * May 18 - Asteroid 78453 Bullock Closest Approach To Earth (2.049 AU)
    * May 18 - Kuiper Belt Object 2015 KH162 At Opposition (58.714 AU)
    * May 18 - 30th Anniversary (1988), Torino Meteorite Fall (Hit Building in Italy)
    * May 18 - 65th Anniveray (1953), Jacqueline Cochran Becomes 1st Woman to Break
    Sound Barrier
    * May 18 - Richard Tousey's 110th Birthday (1908)
    * May 18 - Omar Khayyam's 970th Birthday (1048)
    * May 19 - Comet 66P/du Toit Perihelion (1.290 AU)
    * May 19 - Comet P/2010 H2 (Vales) Closest Approach To Earth (2.256 AU)
    * May 19 - Comet P/2014 U2 (Kowalski) At Opposition (3.028 AU)
    * May 19 - Comet 120P/Mueller At Opposition (4.235 AU)
    * May 19 - Comet C/2013 C2 (Tenagra) At Opposition (8.820 AU)
    * May 19 - Asteroid 128036 Rafaelnadal Closest Approach To Earth (0.885 AU)
    * May 19 - Asteroid 6469 Armstrong Closest Approach To Earth (1.055 AU)
    * May 19 - Asteroid 224693 Morganfreeman Closest Approach To Earth (1.818 AU)
    * May 19 - Asteroid 2104 Toronto Closest Approach To Earth (1.929 AU)
    * May 19 - Asteroid 10377 Kilimanjaro Closest Approach To Earth (2.621 AU)
    * May 19 - John Hayford's 150th Birthday (1868)
    * May 20 - Comet 118P/Shoemaker-Levy At Opposition (3.363 AU)
    * May 20 - Comet 84P/Giclas At Opposition (3.775 AU)
    * May 20 - Apollo Asteroid 24761 Ahau Closest Approach To Earth (0.867 AU)
    * May 20 - Asteroid 15318 Innsbrook Closest Approach To Earth (1.156 AU)
    * May 20 - Asteroid 472 Roma Closest Approach To Earth (1.821 AU)
    * May 20 - Asteroid 3623 Chaplin Closest Approach To Earth (1.934 AU)
    * May 20 - Asteroid 8657 Cedrus Closest Approach To Earth (2.023 AU)
    * May 20 - 30th Anniversary (1978), Pioneer Venus 1 Launch
    * May 21 - Asteroid 4104 Alu Closest Approach To Earth (1.367 AU)
    * May 21 - Asteroid 8734 Warner Closest Approach To Earth (1.975 AU)
    * May 21 - Glenn Curtiss' 140th Birthday (1878)
    * May 22 - Mars Autumnal Equinox
    * May 22 - Comet 215P/NEAT At Opposition (3.056 AU)
    * May 22 - Asteroid 9949 Brontosaurus Closest Approach To Earth (1.230 AU)
    * May 22 - Asteroid 16682 Donati Closest Approach To Earth (1.325 AU)
    * May 22 - Asteroid 1541 Estonia Closest Approach To Earth (1.623 AU)
    * May 22 - David Levy's 70th Birthday (1948)
    * May 22 - 110th Anniversary (1808), Stannern Meteorite Fall in Czechoslovakia * May 23 - Comet 24P/Schaumasse At Opposition (1.454 AU)
    * May 23 - Comet P/2010 H2 (Vales) At Opposition (2.259 AU)
    * May 23 - Comet 159P/LONEOS Perihelion (3.625 AU)
    * May 23 - Comet 104P/Kowal At Opposition (4.057 AU)
    * May 23 - Apollo Asteroid 2016 WL7 Near-Earth Flyby (0.080 AU)
    * May 23 - Asteroid 1284 Latvia Closest Approach To Earth (2.104 AU)
    * May 23 - Thomas Reiter's 60th Birthday (1958)
    * May 24 - Comet 107P/Wilson-Harrington Perihelion (0.970 AU)
    * May 24 - Asteroid 30444 Shemp Closest Approach To Earth (1.845 AU)
    * May 25 - Towel Day - Annual Tribute to Douglas Adams
    * May 25 - Comet 5D/Brorsen Closest Approach To Earth (2.295 AU)
    * May 25 - Comet 187P/LINEAR At Opposition (2.888 AU)
    * May 25 - Comet P/2012 SB6 (Lemmon) At Opposition (3.601 AU)
    * May 25 - Comet P/2011 U2 (Bressi) At Opposition (4.583 AU)
    * May 25 - Asteroid 17059 Elvis Closest Approach To Earth (1.553 AU)
    * May 25 - Asteroid 157064 Sedona Closest Approach To Earth (2.104 AU)
    * May 25 - 10th Anniversary (2008), Phoenix, Mars Landing
    * May 26 - Comet 234P/LINEAR Closest Approach To Earth (2.354 AU)
    * May 26 - Comet 187P/LINEAR Closest Approach To Earth (2.888 AU)
    * May 26 - Comet P/2011 U2 (Bressi) Closest Approach To Earth (4.583 AU)
    * May 26 - Asteroid 5738 Billpickering Closest Approach To Earth (2.119 AU)
    * May 26 - Plutino 2006 HJ123 At Opposition (33.096 AU)
    * May 27 - Moon Occults Asteroid 16 Psyche
    * May 27 - Comet 255P/Levy At Opposition (2.698 AU)
    * May 27 - Comet P/2017 G2 (PANSTARRS) Closest Approach To Earth (2.954 AU)
    * May 27 - Comet 315P/LONEOS At Opposition (3.368 AU)
    * May 27 - Aten Asteroid 66391 (1999 KW4) Near-Earth Flyby (0.078 AU)
    * May 27 - Asteroid 11335 Santiago Closest Approach To Earth (1.456 AU)
    * May 27 - Asteroid 2197 Shanghai Closest Approach To Earth (2.302 AU)
    * May 27 - Plutino 38628 Huya At Opposition (27.633 AU)
    * May 27 - Alexander Volkov's 70th Birthday (1948)
    * May 28 - Comet P/1999 RO28 (LONEOS) Closest Approach To Earth (2.877 AU)
    * May 28 - Comet C/2015 VL62 Closest Approach To Earth (2.895 AU)
    * May 28 - Comet 215P/NEAT Closest Approach To Earth (3.051 AU)
    * May 28 - Comet 187P/LINEAR Perihelion (3.880 AU)
    * May 28 - Comet 157P/Tritton At Opposition (3.884 AU)
    * May 28 - Asteroid 17744 Jodiefoster Closest Approach To Earth (1.376 AU)
    * May 28 - Asteroid 6117 Brevardastro Closest Approach To Earth (1.478 AU)
    * May 28 - Asteroid 4099 Wiggins Closest Approach To Earth (1.803 AU)
    * May 28 - Asteroid 2044 Wirt Closest Approach To Earth (1.997 AU)
    * May 28 - Asteroid 1042 Amazone Closest Approach To Earth (2.273 AU)
    * May 29 - Aten Asteroid 68347 (2001 KB67) Near-Earth Flyby (0.024 AU)
    * May 29 - Apollo Asteroid 2014 WG365 Near-Earth Flyby (0.061 AU)
    * May 29 - Asteroid 3131 Mason-Dixon Closest Approach To Earth (1.832 AU)
    * May 30 - Soyuz MS-9 Soyuz-FG Launch (International Space Station 55S)
    * May 30 - Comet P/2008 T4 (Hill) Perihelion (2.527 AU)
    * May 30 - Comet C/2017 B3 (LINEAR) Closest Approach To Earth (3.873 AU)
    * May 30 - Comet 144P/Kushida At Opposition (3.888 AU)
    * May 30 - Asteroid 12325 Bogota Closest Approach To Earth (1.353 AU)
    * May 30 - Neptune Trojan 2010 TT191 At Opposition (33.184 AU)
    * May 30 - Michael Lopez-Alegria's 60th Birthday (1958)
    * May 30 - Hannes Alfven's 100th Birthday (1908)
    * May 30 - Raymond Dugan's 140th Birthday (1878)
    * May 31 - Comet 164P/Christensen Perihelion (1.685 AU)
    * May 31 - Comet 227P/Catalina-LINEAR At Opposition (2.195 AU)
    * May 31 - Amor Asteroid 2013 LE7 Near-Earth Flyby (0.046 AU)
    * May 31 - Asteroid 5891 Gehrig Closest Approach To Earth (1.724 AU)
    * May 31 - Asteroid 13599 Lisbon Closest Approach To Earth (1.896 AU)
    * May 31 - Asteroid 24102 Jacquecassini Closest Approach To Earth (1.913 AU)
    * May 31 - Asteroid 589 Croatia Closest Approach To Earth (2.250 AU)
    * May 31 - Kuiper Belt Object 2007 JH43 At Opposition (39.551 AU)
    * May 31 - 10th Anniversary (2008), STS-124 Launch (Space Shuttle Discovery, International Space Station)
    * May 31 - 20th Anniversary (1998), Galileo, Europa 15 Flyby

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