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.

                               2021 November 6
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                       The Galaxy Between Two Friends
               Image Credit & [3]Copyright: [4]Martin Lefranc

   Explanation: On an August night two friends [5]enjoyed this view after
   a day's hike on the Plateau d'Emparis in the French Alps. At 2400
   meters altitude the sky was clear. Light from a setting moon
   illuminates the foreground captured in the simple vertical panorama of
   images. Along the plane of our Milky Way galaxy stars of Cassiopeia and
   Perseus shine along the panorama's left edge. But seen as a faint cloud
   with a brighter core, the [6]Andromeda galaxy, stands directly above
   the two friends in the night. The nearest large spiral galaxy,
   Andromeda is about 2.5 million light-years beyond the stars of the
   Milky Way. Adding to the evening's shared [7]extragalactic perspective,
   the fainter fuzzy spot in the sky right between them is M33, also known
   as the [8]Triangulum galaxy. Third largest in the [9]local galaxy
   group, after Andromeda and Milky Way, the Triangulum galaxy is about 3
   million light-years distant. On that night, the two friends stood about
   3 [10]light-nanoseconds apart.

                    Tomorrow's picture: cosmic spirograph
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    Authors & editors: [22]Robert Nemiroff ([23]MTU) & [24]Jerry Bonnell
                                 ([25]UMCP)
          NASA Official: Phillip Newman [26]Specific rights apply.
              [27]NASA Web Privacy Policy and Important Notices
                A service of: [28]ASD at [29]NASA / [30]GSFC
                           & [31]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2111/panohugoetmoiAPODjpg-standard2048.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.instagram.com/martinlefrancphotographie
   5. https://www.instagram.com/p/CUDUY7Rsj1t/
   6. https://www.nasa.gov/feature/goddard/2017/messier-31-the-andromeda-galaxy
   7. https://www.nasa.gov/mission_pages/chandra/images/chandra-sees-evidence-for-possible-planet-in-another-galaxy.html
   8. https://apod.nasa.gov/apod/ap191231.html
   9. https://imagine.gsfc.nasa.gov/features/cosmic/local_group_info.html
  10. https://units.fandom.com/wiki/Light-nanosecond
  11. https://apod.nasa.gov/apod/ap211105.html
  12. https://apod.nasa.gov/apod/archivepix.html
  13. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  14. https://apod.nasa.gov/apod/lib/aptree.html
  15. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  16. https://apod.nasa.gov/apod/calendar/allyears.html
  17. https://apod.nasa.gov/apod.rss
  18. https://apod.nasa.gov/apod/lib/edlinks.html
  19. https://apod.nasa.gov/apod/lib/about_apod.html
  20. http://asterisk.apod.com/discuss_apod.php?date=211106
  21. https://apod.nasa.gov/apod/ap211107.html
  22. http://www.phy.mtu.edu/faculty/Nemiroff.html
  23. http://www.phy.mtu.edu/
  24. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  25. http://www.astro.umd.edu/
  26. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  27. https://www.nasa.gov/about/highlights/HP_Privacy.html
  28. https://astrophysics.gsfc.nasa.gov/
  29. https://www.nasa.gov/
  30. https://www.nasa.gov/centers/goddard/
  31. http://www.mtu.edu/