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                        Astronomy Picture of the Day

   [1]Discover the cosmos! Each day a different image or photograph of our
      fascinating universe is featured, along with a brief explanation
                    written by a professional astronomer.

                               2021 February 2
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                        A Colorful Quadrantid Meteor
                  Image Credit & Copyright: [3]Frank Kuszaj

   Explanation: Meteors can be colorful. While the [4]human eye usually
   cannot discern many colors, cameras often can. Pictured is a
   [5]Quadrantids meteor captured by camera over [6]Missouri, [7]USA,
   early this month that was not only impressively bright, but colorful.
   The [8]radiant grit, likely cast off by asteroid [9]2003 EH1, blazed a
   path across [10]Earth's atmosphere. [11]Colors in meteors usually
   originate from ionized elements released as the [12]meteor
   disintegrates, with blue-green typically originating from
   [13]magnesium, [14]calcium radiating violet, and [15]nickel glowing
   green. Red, however, typically originates from energized [16]nitrogen
   and [17]oxygen in the Earth's atmosphere. This bright [18]meteoric
   [19]fireball was gone in a flash -- less than a second -- but it left a
   [20]wind-blown ionization trail that [21]remained visible for several
   minutes.

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                     Tomorrow's picture: moon rock roll
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    Authors & editors: [36]Robert Nemiroff ([37]MTU) & [38]Jerry Bonnell
                                 ([39]UMCP)
          NASA Official: Phillip Newman [40]Specific rights apply.
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                A service of: [42]ASD at [43]NASA / [44]GSFC
                           & [45]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2102/MeteorStreak_Kuszaj_5341.jpg
   3. mailto:%20franklyliving%20.dot.%20photography%20@at@%20gmail%20.dot.%20com
   4. https://medium.com/photography-secrets/whats-the-difference-between-a-camera-and-a-human-eye-a006a795b09f
   5. https://en.wikipedia.org/wiki/Quadrantids
   6. https://en.wikipedia.org/wiki/Missouri
   7. https://www.cia.gov/the-world-factbook/countries/united-states/#introduction
   8. https://upload.wikimedia.org/wikipedia/commons/6/63/Meteoroid_meteor_meteorite.gif
   9. https://en.wikipedia.org/wiki/(196256)_2003_EH1
  10. https://scied.ucar.edu/shortcontent/earths-atmosphere
  11. https://www.amsmeteors.org/fireballs/faqf/#5
  12. https://solarsystem.nasa.gov/asteroids-comets-and-meteors/meteors-and-meteorites/in-depth/
  13. https://youtu.be/wqErrNvns4o
  14. https://periodic.lanl.gov/20.shtml
  15. https://en.wikipedia.org/wiki/Nickel
  16. https://youtu.be/0kMqRhJ_A0c
  17. https://youtu.be/qERdL8uHSgI
  18. https://www.amsmeteors.org/meteor-showers/meteor-faq/
  19. https://www.amsmeteors.org/fireballs/faqf/
  20. https://youtu.be/KJpQTL6V_WI
  21. https://apod.nasa.gov/apod/ap180817.html
  22. https://www.facebook.com/AstronomyPictureOfTheDay
  23. https://www.facebook.com/apod.cat
  24. https://www.facebook.com/apodbrasil/
  25. https://apod.nasa.gov/apod/ap210201.html
  26. https://apod.nasa.gov/apod/archivepix.html
  27. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  28. https://apod.nasa.gov/apod/lib/aptree.html
  29. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  30. https://apod.nasa.gov/apod/calendar/allyears.html
  31. https://apod.nasa.gov/apod.rss
  32. https://apod.nasa.gov/apod/lib/edlinks.html
  33. https://apod.nasa.gov/apod/lib/about_apod.html
  34. http://asterisk.apod.com/discuss_apod.php?date=210202
  35. https://apod.nasa.gov/apod/ap210203.html
  36. http://www.phy.mtu.edu/faculty/Nemiroff.html
  37. http://www.phy.mtu.edu/
  38. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  39. http://www.astro.umd.edu/
  40. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  41. https://www.nasa.gov/about/highlights/HP_Privacy.html
  42. https://astrophysics.gsfc.nasa.gov/
  43. https://www.nasa.gov/
  44. https://www.nasa.gov/centers/goddard/
  45. http://www.mtu.edu/