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 September 4
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                          NGC 4565: Galaxy on Edge
      Image Credit & [3]Copyright: [4]José Rodrigues ([5]IA, [6]OFXB)

   Explanation: Magnificent spiral galaxy [7]NGC 4565 is viewed edge-on
   from planet Earth. Also known as the Needle Galaxy for its narrow
   profile, bright NGC 4565 is a stop on many telescopic tours of the
   northern sky, in the faint but well-groomed constellation [8]Coma
   Berenices. [9]This sharp, colorful image reveals the galaxy's [10]boxy,
   bulging central core cut by [11]obscuring dust lanes that lace NGC
   4565's thin galactic plane. NGC 4565 lies around 40 million
   [12]light-years distant while the spiral galaxy itself spans some
   100,000 light-years. That's about the size of our own Milky Way. Easily
   spotted with small telescopes, [13]deep sky enthusiasts consider NGC
   4565 to be a prominent celestial masterpiece [14]Messier missed.

                       Tomorrow's picture: not a star
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    Authors & editors: [26]Robert Nemiroff ([27]MTU) & [28]Jerry Bonnell
                                 ([29]UMCP)
          NASA Official: Amber Straughn [30]Specific rights apply.
            [31]NASA Web Privacy, [32]Accessibility, [33]Notices;
                A service of: [34]ASD at [35]NASA / [36]GSFC,
                         [37]NASA Science Activation
                           & [38]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2509/NGC4565_APOD_sRGB.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://joserodrigues.space/
   5. https://iastro.pt/
   6. https://www.ofxb.ch/
   7. http://www.messier.seds.org/xtra/ngc/n4565.html
   8. http://www.dibonsmith.com/com_con.htm
   9. https://joserodrigues.space/deep-sky/
  10. https://arxiv.org/abs/1810.10073
  11. https://www.nasa.gov/mission_pages/hubble/science/needle-edge.html
  12. http://chandra.harvard.edu/photo/cosmic_distance.html
  13. http://www.cloudynights.com/item.php?item_id=1059
  14. https://apod.nasa.gov/apod/ap080419.html
  15. https://apod.nasa.gov/apod/ap250903.html
  16. https://apod.nasa.gov/apod/archivepix.html
  17. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  18. https://apod.nasa.gov/apod/lib/aptree.html
  19. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  20. https://apod.nasa.gov/apod/calendar/allyears.html
  21. https://apod.com/feed.rss
  22. https://apod.nasa.gov/apod/lib/edlinks.html
  23. https://apod.nasa.gov/apod/lib/about_apod.html
  24. https://asterisk.apod.com/discuss_apod.php?date=250904
  25. https://apod.nasa.gov/apod/ap250905.html
  26. http://www.phy.mtu.edu/faculty/Nemiroff.html
  27. http://www.phy.mtu.edu/
  28. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  29. http://www.astro.umd.edu/
  30. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  31. https://www.nasa.gov/about/highlights/HP_Privacy.html
  32. https://www.nasa.gov/general/accessibility/
  33. https://www.nasa.gov/privacy/
  34. https://astrophysics.gsfc.nasa.gov/
  35. https://www.nasa.gov/
  36. https://www.nasa.gov/centers/goddard/
  37. https://science.nasa.gov/learners
  38. http://www.mtu.edu/