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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.

                               2020 November 1
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                     In the Center of the Trifid Nebula
   Image Credit: [3]Subaru Telescope ([4]NAOJ), [5]Hubble Space Telescope,
                [6]Martin Pugh; Processing: [7]Robert Gendler

   Explanation: What's happening at the center of the Trifid Nebula? Three
   prominent [8]dust lanes that give the [9]Trifid its name all come
   together. [10]Mountains of opaque dust appear near the bottom, while
   other dark filaments of dust are visible threaded throughout the
   nebula. A [11]single massive star visible near the center causes much
   of the [12]Trifid's glow. The Trifid, cataloged as [13]M20, is only
   about 300,000 years old, making it among the youngest [14]emission
   nebulas known. [15]The star forming nebula lies about 9,000 [16]light
   years away toward the [17]constellation of the Archer
   ([18]Sagittarius). The region [19]pictured here spans about 10 light
   years. The [20]featured image is a composite with [21]luminance taken
   from an image by the 8.2-m ground-based [22]Subaru Telescope, detail
   provided by the 2.4-m orbiting [23]Hubble Space Telescope, color data
   provided by [24]Martin Pugh and image assembly and processing provided
   by [25]Robert Gendler.

                 Portal Universe: [26]Random APOD Generator
                   Tomorrow's picture: half prominent sun
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    Authors & editors: [38]Robert Nemiroff ([39]MTU) & [40]Jerry Bonnell
                                 ([41]UMCP)
          NASA Official: Phillip Newman [42]Specific rights apply.
              [43]NASA Web Privacy Policy and Important Notices
                A service of: [44]ASD at [45]NASA / [46]GSFC
                           & [47]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2011/Trifid_HubbleGendler_2400.jpg
   3. https://subarutelescope.org/
   4. https://www.nao.ac.jp/
   5. http://hla.stsci.edu/hla_welcome.html
   6. https://www.martinpughastrophotography.space/
   7. http://www.robgendlerastropics.com/
   8. https://apod.nasa.gov/apod/ap030706.html
   9. https://apod.nasa.gov/apod/ap110513.html
  10. https://apod.nasa.gov/apod/ap071226.html
  11. https://ui.adsabs.harvard.edu/abs/2001ApJ...562..446R/abstract
  12. https://apod.nasa.gov/apod/ap980828.html
  13. https://en.wikipedia.org/wiki/Trifid_Nebula
  14. https://apod.nasa.gov/apod/emission_nebulae.html
  15. https://www.youtube.com/watch?v=xe3lYHcmbEI
  16. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html
  17. http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html
  18. https://chandra.harvard.edu/photo/constellations/sagittarius.html
  19. http://www.robgendlerastropics.com/M20-Subaru-HST.html
  20. http://www.robgendlerastropics.com/M20-Subaru-HST.html
  21. https://en.wikipedia.org/wiki/Luminance
  22. https://subarutelescope.org/en/about/
  23. https://hubblesite.org/mission-and-telescope
  24. https://www.martinpughastrophotography.space/
  25. http://www.robgendlerastropics.com/
  26. https://apod.nasa.gov/apod/random_apod.html
  27. https://apod.nasa.gov/apod/ap201031.html
  28. https://apod.nasa.gov/apod/archivepix.html
  29. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  30. https://apod.nasa.gov/apod/lib/aptree.html
  31. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  32. https://apod.nasa.gov/apod/calendar/allyears.html
  33. https://apod.nasa.gov/apod.rss
  34. https://apod.nasa.gov/apod/lib/edlinks.html
  35. https://apod.nasa.gov/apod/lib/about_apod.html
  36. http://asterisk.apod.com/discuss_apod.php?date=201101
  37. https://apod.nasa.gov/apod/ap201102.html
  38. http://www.phy.mtu.edu/faculty/Nemiroff.html
  39. http://www.phy.mtu.edu/
  40. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  41. http://www.astro.umd.edu/
  42. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  43. https://www.nasa.gov/about/highlights/HP_Privacy.html
  44. https://astrophysics.gsfc.nasa.gov/
  45. https://www.nasa.gov/
  46. https://www.nasa.gov/centers/goddard/
  47. http://www.mtu.edu/