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.

                               2024 January 16
    [2]The constellation of Orion is shown, but the image is so deep that
    many nebula appear, making the belt stars and surrounding star almost
   recognizable. The rollover image labels the brightest stars. Please see
               the explanation for more detailed information.

                        The Orion You Can Almost See
                Image Credit & Copyright: [3]Michele Guzzini

   Explanation: Do you recognize this constellation? Although it is one of
   the [4]most recognizable star groupings on the sky, [5]this is a
   [6]more full Orion than you can see -- an Orion only revealed with long
   exposure digital camera imaging and [7]post[8]- [9]processing. Here the
   cool [10]red giant [11]Betelgeuse takes on a strong orange tint as the
   brightest star on the upper left. [12]Orion's hot blue stars are
   numerous, with [13]supergiant [14]Rigel balancing Betelgeuse on the
   lower right, and [15]Bellatrix at the upper right. Lined up in
   [16]Orion's belt are three stars [17]all about 1,500 [18]light-years
   away, born from the constellation's well-studied [19]interstellar
   clouds. Just below Orion's belt is a bright but fuzzy patch that might
   also [20]look familiar -- the stellar nursery known as [21]Orion's
   Nebula. Finally, just barely visible to the [22]unaided eye but quite
   striking here is [23]Barnard's Loop -- a huge gaseous emission nebula
   surrounding Orion's Belt and Nebula discovered over 100 years ago by
   the pioneering Orion photographer [24]E. E. Barnard.

                   Tomorrow's picture: the sea of serenity
     __________________________________________________________________

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    Authors & editors: [36]Robert Nemiroff ([37]MTU) & [38]Jerry Bonnell
                                 ([39]UMCP)
          NASA Official: Ryan Smallcomb [40]Specific rights apply.
              [41]NASA Web Privacy Policy and Important Notices
                A service of: [42]ASD at [43]NASA / [44]GSFC,
                         [45]NASA Science Activation
                           & [46]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2401/OrionMcc_Guzzini_1366.jpg
   3. https://www.instagram.com/micheleguzzini/
   4. https://en.wikipedia.org/wiki/Orion_(constellation)
   5. https://www.instagram.com/p/C1Pz_MdIEmN/
   6. https://apod.nasa.gov/apod/ap151123.html
   7. https://media.snopes.com/2009/01/rand.jpg
   8. https://www.snopes.com/fact-check/1954-home-computer/
   9. https://media.snopes.com/2009/01/rand.jpg
  10. https://en.wikipedia.org/wiki/Red_giant
  11. https://apod.nasa.gov/apod/ap100106.html
  12. https://universe.nasa.gov/news/147/discovering-the-universe-through-the-constellation-orion/
  13. https://en.wikipedia.org/wiki/Supergiant_star
  14. https://apod.nasa.gov/apod/ap180115.html
  15. http://earthsky.org/tonight/bellatrix-orions-third-brightest-means-female-warrior
  16. https://apod.nasa.gov/apod/ap170604.html
  17. https://www.youtube.com/watch?v=lD-5ZOipE48
  18. https://spaceplace.nasa.gov/light-year/
  19. http://astronomy.swin.edu.au/cosmos/I/Interstellar+Gas+Cloud
  20. https://www.youtube.com/watch?v=-EjukzL-bJc
  21. https://apod.nasa.gov/apod/ap171129.html
  22. https://www.aoa.org/patients-and-public/resources-for-teachers/how-your-eyes-work
  23. https://en.wikipedia.org/wiki/Barnard's_Loop
  24. https://en.wikipedia.org/wiki/Edward_Emerson_Barnard
  25. https://apod.nasa.gov/apod/ap240115.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.com/feed.rss
  32. https://apod.nasa.gov/apod/lib/edlinks.html
  33. https://apod.nasa.gov/apod/lib/about_apod.html
  34. https://asterisk.apod.com/discuss_apod.php?date=240116
  35. https://apod.nasa.gov/apod/ap240117.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. https://science.nasa.gov/learners
  46. http://www.mtu.edu/