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.

                                2022 June 18
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                           The Gamma Cygni Nebula
     Image Credit & [3]Copyright: [4]Min Xie, Chen Wu, Yizhou Zhang, and
                                 Benchu Tang

   Explanation: [5]Supergiant star Gamma Cygni is at the center of the
   Northern Cross. Near the plane of our Milky Way galaxy, that famous
   [6]asterism flies high in northern summer night skies in the
   constellation [7]Cygnus the Swan. Known by the proper [8]name Sadr,
   Gamma Cygni also lies just below center in [9]this telescopic skyscape,
   with colors mapped from both broadband and narrowband image data. The
   field of view spans about 3 degrees (six Full Moons) on the sky and
   includes emission nebula IC 1318 and open star cluster NGC 6910.
   Filling the upper part of the frame and shaped like two glowing cosmic
   wings divided by a long dark dust lane, IC 1318's popular name is
   understandably the [10]Butterfly Nebula. Right of Gamma Cygni, are the
   young, still tightly grouped stars of NGC 6910. [11]The distance to
   Gamma Cygni is around 560 parsecs or 1,800 light-years. Estimates for
   IC 1318 and [12]NGC 6910 range from 2,000 to 5,000 light-years.

                       Tomorrow's picture: don't crash
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    Authors & editors: [24]Robert Nemiroff ([25]MTU) & [26]Jerry Bonnell
                                 ([27]UMCP)
          NASA Official: Phillip Newman [28]Specific rights apply.
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                A service of: [30]ASD at [31]NASA / [32]GSFC
                           & [33]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2206/gamma-cygni-nebula-and-sadr.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.astrobin.com/users/mxcoppell/
   5. https://en.wikipedia.org/wiki/Supergiant
   6. http://maps.seds.org/Const/asterism.html
   7. http://en.wikipedia.org/wiki/Cygnus_(constellation)
   8. http://stars.astro.illinois.edu/sow/sadr.html
   9. https://www.astrobin.com/u6s6si/
  10. https://apod.nasa.gov/apod/ap210316.html
  11. https://solarsystem.nasa.gov/news/1230/cosmic-distances/
  12. http://www.univie.ac.at/webda/cgi-bin/ocl_page.cgi?dirname=ngc6910
  13. https://apod.nasa.gov/apod/ap220617.html
  14. https://apod.nasa.gov/apod/archivepix.html
  15. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  16. https://apod.nasa.gov/apod/lib/aptree.html
  17. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  18. https://apod.nasa.gov/apod/calendar/allyears.html
  19. https://apod.nasa.gov/apod.rss
  20. https://apod.nasa.gov/apod/lib/edlinks.html
  21. https://apod.nasa.gov/apod/lib/about_apod.html
  22. http://asterisk.apod.com/discuss_apod.php?date=220618
  23. https://apod.nasa.gov/apod/ap220619.html
  24. http://www.phy.mtu.edu/faculty/Nemiroff.html
  25. http://www.phy.mtu.edu/
  26. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  27. http://www.astro.umd.edu/
  28. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  29. https://www.nasa.gov/about/highlights/HP_Privacy.html
  30. https://astrophysics.gsfc.nasa.gov/
  31. https://www.nasa.gov/
  32. https://www.nasa.gov/centers/goddard/
  33. http://www.mtu.edu/