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.

                                2025 June 17
    [2]A starfield is covered with a light red glow. Several nebulas are
     seen near the center. The famous Rosette nebula appears in blue and
      white near the image bottom. Please see the explanation for more
                            detailed information.

                          Rosette Nebula Deep Field
                    Image Credit: [3]Toni Fabiani Méndez

   Explanation: Can you find the Rosette Nebula? The red flowery-looking
   nebula just above the image center may seem a good choice, but that's
   not it. The famous [4]Rosette Nebula is really located on the lower
   right, here [5]colored blue and white, and connected to the [6]other
   nebulas by gold-colored filaments. Because the [7]featured image of
   Rosette's field is so [8]wide, and because of its deep [9]red exposure,
   it seems to contain other flowers. Designated [10]NGC 2237, the center
   of the Rosette Nebula is populated by the bright blue stars of open
   cluster [11]NGC 2244, whose winds and [12]energetic light are
   evacuating the nebula's center. The [13]Rosette Nebula is about 5,000
   light years distant and, just by itself, [14]spans about three times
   the diameter of a [15]full moon. This flowery field can be found toward
   the [16]constellation of the [17]Unicorn ([18]Monoceros).

              Explore Your Universe: [19]Random APOD Generator
                      Tomorrow's picture: not a crater
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    Authors & editors: [31]Robert Nemiroff ([32]MTU) & [33]Jerry Bonnell
                                 ([34]UMCP)
          NASA Official: Amber Straughn [35]Specific rights apply.
            [36]NASA Web Privacy, [37]Accessibility, [38]Notices;
                A service of: [39]ASD at [40]NASA / [41]GSFC,
                         [42]NASA Science Activation
                           & [43]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2506/RosettaDeepRed_Mendez_3294.jpg
   3. https://www.instagram.com/toni_fabiani/
   4. https://apod.nasa.gov/apod/ap210214.html
   5. https://apod.nasa.gov/apod/ap240209.html
   6. https://science.nasa.gov/mission/hubble/multimedia/name-that-nebula/
   7. https://www.instagram.com/p/DIB88SKsIFt/
   8. https://apod.nasa.gov/apod/ap240123.html
   9. https://en.wikipedia.org/wiki/Hydrogen-alpha
  10. https://apod.nasa.gov/apod/ap960214.html
  11. https://apod.nasa.gov/apod/ap210221.html
  12. https://science.nasa.gov/ems/10_ultravioletwaves/
  13. https://en.wikipedia.org/wiki/Rosette_Nebula
  14. https://media.istockphoto.com/id/1170788665/photo/jumping-cat.jpg?s=612x612&w=0&k=20&c=ZvO4j-SI87tsFolx95wXRSr1JTRIz74ONyotWGSi5Ww=
  15. https://apod.nasa.gov/apod/ap220612.html
  16. https://spaceplace.nasa.gov/constellations/
  17. https://en.wikipedia.org/wiki/Unicorn
  18. https://en.wikipedia.org/wiki/Monoceros
  19. https://apod.nasa.gov/apod/random_apod.html
  20. https://apod.nasa.gov/apod/ap250616.html
  21. https://apod.nasa.gov/apod/archivepix.html
  22. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  23. https://apod.nasa.gov/apod/lib/aptree.html
  24. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  25. https://apod.nasa.gov/apod/calendar/allyears.html
  26. https://apod.com/feed.rss
  27. https://apod.nasa.gov/apod/lib/edlinks.html
  28. https://apod.nasa.gov/apod/lib/about_apod.html
  29. https://asterisk.apod.com/discuss_apod.php?date=250617
  30. https://apod.nasa.gov/apod/ap250618.html
  31. http://www.phy.mtu.edu/faculty/Nemiroff.html
  32. http://www.phy.mtu.edu/
  33. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  34. http://www.astro.umd.edu/
  35. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  36. https://www.nasa.gov/about/highlights/HP_Privacy.html
  37. https://www.nasa.gov/general/accessibility/
  38. https://www.nasa.gov/privacy/
  39. https://astrophysics.gsfc.nasa.gov/
  40. https://www.nasa.gov/
  41. https://www.nasa.gov/centers/goddard/
  42. https://science.nasa.gov/learners
  43. http://www.mtu.edu/