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.

                                 2023 June 5
    [2]A bright red gaseous nebula is pictures with three dark dust lanes
    meeting in the center. The top of the nebula appears blue. Please see
               the explanation for more detailed information.

                     In the Center of the Trifid Nebula
                  Image Credit & Copyright: [3]Martin Pugh

   Explanation: What's happening at the center of the Trifid Nebula? Three
   prominent [4]dust lanes that give the [5]Trifid its name all come
   together. [6]Mountains of opaque dust appear near the bottom, while
   other dark filaments of dust are visible threaded throughout the
   nebula. A [7]single massive star visible near the center causes much of
   the [8]Trifid's glow. The Trifid, cataloged as [9]M20, is only about
   300,000 years old, making it among the youngest [10]emission nebulas
   known. [11]The star forming nebula lies about 9,000 [12]light years
   away toward the [13]constellation of the Archer ([14]Sagittarius). The
   region pictured here [15]spans about 20 light years.

                 Portal Universe: [16]Random APOD Generator
                      Tomorrow's picture: planet killer
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    Authors & editors: [28]Robert Nemiroff ([29]MTU) & [30]Jerry Bonnell
                                 ([31]UMCP)
          NASA Official: Phillip Newman [32]Specific rights apply.
              [33]NASA Web Privacy Policy and Important Notices
                A service of: [34]ASD at [35]NASA / [36]GSFC,
                         [37]NASA Science Activation
                           & [38]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2306/Trifid_Pugh_2346.jpg
   3. https://www.martinpughastrophotography.space/about
   4. https://apod.nasa.gov/apod/ap030706.html
   5. https://apod.nasa.gov/apod/ap110513.html
   6. https://apod.nasa.gov/apod/ap201222.html
   7. https://ui.adsabs.harvard.edu/abs/2001ApJ...562..446R/abstract
   8. https://apod.nasa.gov/apod/ap980828.html
   9. https://en.wikipedia.org/wiki/Trifid_Nebula
  10. https://apod.nasa.gov/apod/emission_nebulae.html
  11. https://www.youtube.com/watch?v=xe3lYHcmbEI
  12. https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html
  13. https://spaceplace.nasa.gov/constellations/en/
  14. https://chandra.harvard.edu/photo/constellations/sagittarius.html
  15. https://media.istockphoto.com/id/1170788685/photo/jumping-cat.jpg?s=612x612&w=0&k=20&c=_Ot_m-qULa-AS2ueDMH8Qc4vu8jdsNso2hzIxsVGjTw=
  16. https://apod.nasa.gov/apod/random_apod.html
  17. https://apod.nasa.gov/apod/ap230604.html
  18. https://apod.nasa.gov/apod/archivepix.html
  19. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  20. https://apod.nasa.gov/apod/lib/aptree.html
  21. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  22. https://apod.nasa.gov/apod/calendar/allyears.html
  23. https://apod.nasa.gov/apod.rss
  24. https://apod.nasa.gov/apod/lib/edlinks.html
  25. https://apod.nasa.gov/apod/lib/about_apod.html
  26. https://asterisk.apod.com/discuss_apod.php?date=230605
  27. https://apod.nasa.gov/apod/ap230606.html
  28. http://www.phy.mtu.edu/faculty/Nemiroff.html
  29. http://www.phy.mtu.edu/
  30. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  31. http://www.astro.umd.edu/
  32. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  33. https://www.nasa.gov/about/highlights/HP_Privacy.html
  34. https://astrophysics.gsfc.nasa.gov/
  35. https://www.nasa.gov/
  36. https://www.nasa.gov/centers/goddard/
  37. https://science.nasa.gov/learners
  38. http://www.mtu.edu/