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 November 4
   [2]A starfield is shown with a nebula glowing in red, purple, and blue.
   Dark brown gas is also seen on the lower left. A small cluster of stars
     appears in the center. Please see the explanation for more detailed
                                information.

                       M42: The Great Nebula in Orion
                   Credit & Copyright: [3]Fényes Lóránd

   Explanation: The [4]Great Nebula in Orion, an immense, nearby
   [5]starbirth region, is probably the most famous of all [6]astronomical
   nebulas. Here, [7]glowing gas surrounds hot young stars at the edge of
   an [8]immense interstellar [9]molecular cloud only 1500 [10]light-years
   away. In the [11]featured deep image in [12]assigned colors highlighted
   by emission in [13]oxygen and [14]hydrogen, wisps and sheets of
   [15]dust and gas are particularly evident. The [16]Great Nebula in
   Orion can be found with the [17]unaided eye near the [18]easily
   identifiable belt of three stars in the popular [19]constellation
   [20]Orion. In addition to housing a bright [21]open cluster of stars
   known as the [22]Trapezium, the [23]Orion Nebula contains many
   [24]stellar nurseries. These nurseries contain much [25]hydrogen gas,
   hot young stars, [26]proplyds, and [27]stellar jets spewing material at
   high speeds. Also known as [28]M42, the [29]Orion Nebula spans about 40
   [30]light years and is located in the same [31]spiral arm of [32]our
   Galaxy as the [33]Sun.

                     Tomorrow's picture: galaxy watchers
     __________________________________________________________________

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    Authors & editors: [45]Robert Nemiroff ([46]MTU) & [47]Jerry Bonnell
                                 ([48]UMCP)
          NASA Official: Amber Straughn [49]Specific rights apply.
            [50]NASA Web Privacy, [51]Accessibility, [52]Notices;
                A service of: [53]ASD at [54]NASA / [55]GSFC,
                         [56]NASA Science Activation
                           & [57]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2411/Orion_Lorand_1992.jpg
   3. https://www.instagram.com/lorandfenyes/
   4. https://en.wikipedia.org/wiki/Orion_Nebula
   5. https://apod.nasa.gov/apod/stellar_nurseries.html
   6. https://www.google.com/search?hl=en&safe=off&authuser=0&site=imghp&tbm=isch&source=hp&biw=1071&bih=646&q=site:apod.nasa.gov+nebula&oq=site:apod.nasa.gov+nebula
   7. http://astronomy.swin.edu.au/cosmos/E/Emission+Nebula
   8. https://apod.nasa.gov/apod/ap101023.html
   9. https://apod.nasa.gov/apod/ap230129.html
  10. http://chandra.harvard.edu/photo/cosmic_distance.html
  11. https://fenyeslorand.hu/orion/
  12. http://en.wikipedia.org/wiki/LRGB
  13. http://periodic.lanl.gov/8.shtml
  14. http://periodic.lanl.gov/1.shtml
  15. https://apod.nasa.gov/apod/ap990509.html
  16. https://apod.nasa.gov/apod/ap151104.html
  17. https://c.tenor.com/JhvJXq30yA4AAAAC/tenor.gif
  18. https://apod.nasa.gov/apod/ap081015.html
  19. https://spaceplace.nasa.gov/constellations/
  20. https://en.wikipedia.org/wiki/Orion_(constellation)
  21. https://apod.nasa.gov/apod/open_clusters.html
  22. https://apod.nasa.gov/apod/ap180805.html
  23. https://apod.nasa.gov/apod/ap130213.html
  24. https://science.nasa.gov/universe/stars/
  25. https://www.youtube.com/watch?v=MMB2VR0087w
  26. https://apod.nasa.gov/apod/ap961017.html
  27. https://apod.nasa.gov/apod/ap130324.html
  28. https://www.youtube.com/watch?v=2w8wwUqC4Xc
  29. https://apod.nasa.gov/apod/ap980421.html
  30. http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html
  31. https://apod.nasa.gov/apod/ap080606.html
  32. http://www.atlasoftheuniverse.com/galaxy.html
  33. https://science.nasa.gov/sun/
  34. https://apod.nasa.gov/apod/ap241103.html
  35. https://apod.nasa.gov/apod/archivepix.html
  36. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  37. https://apod.nasa.gov/apod/lib/aptree.html
  38. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  39. https://apod.nasa.gov/apod/calendar/allyears.html
  40. https://apod.com/feed.rss
  41. https://apod.nasa.gov/apod/lib/edlinks.html
  42. https://apod.nasa.gov/apod/lib/about_apod.html
  43. https://asterisk.apod.com/discuss_apod.php?date=241104
  44. https://apod.nasa.gov/apod/ap241105.html
  45. http://www.phy.mtu.edu/faculty/Nemiroff.html
  46. http://www.phy.mtu.edu/
  47. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  48. http://www.astro.umd.edu/
  49. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  50. https://www.nasa.gov/about/highlights/HP_Privacy.html
  51. https://www.nasa.gov/general/accessibility/
  52. https://www.nasa.gov/privacy/
  53. https://astrophysics.gsfc.nasa.gov/
  54. https://www.nasa.gov/
  55. https://www.nasa.gov/centers/goddard/
  56. https://science.nasa.gov/learners
  57. http://www.mtu.edu/