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.

                               2026 January 26
     [2]A galaxy is shown that has a lot of blue and red dots in it. The
    galaxy is an long elliptical blob across the middle and not a classic
      spiral. Please see the explanation for more detailed information.

                         NGC 55: A Galaxy of Nebulas
    Image Credit & Copyright: [3]Wolfgang Promper; Text: [4]Ogetay Kayali
                                  ([5]MTU)

   Explanation: Can you see nebulas in other galaxies? Yes, some
   [6]nebulas shine brightly enough -- if you know how to look. Clouds of
   [7]hydrogen and [8]oxygen emit light at very specific colors, and by
   isolating them, astronomers and astrophotographers can reveal
   structures that would otherwise be [9]too faint to notice. [10]This
   deep, 50-hour exposure highlights glowing [11]hydrogen (red) and
   [12]oxygen (blue) across galaxy [13]NGC 55, viewed nearly [14]edge-on.
   Also known as the [15]String of Pearls Galaxy, [16]NGC 55 is often
   compared to our [17]Milky Way's satellite galaxy the [18]Large
   Magellanic Cloud (LMC), although NGC 55 lies much farther away at about
   6.5 million [19]light-years. The resulting image [20]uncovers a
   sprinkling of [21]emission nebulas within and sometimes above the
   galaxy's [22]dusty disk, offering a detailed look at distant
   [23]star-forming regions.

               Jigsaw Galaxy: [24]Astronomy Puzzle of the Day
                    Tomorrow's picture: Orion's treasures
     __________________________________________________________________

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     __________________________________________________________________

    Authors & editors: [36]Robert Nemiroff ([37]MTU) & [38]Jerry Bonnell
                                 ([39]UMCP)
          NASA Official: Amber Straughn [40]Specific rights apply.
            [41]NASA Web Privacy, [42]Accessibility, [43]Notices;
                A service of: [44]ASD at [45]NASA / [46]GSFC,
                         [47]NASA Science Activation
                           & [48]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2601/Ngc55_Promper_3686.jpg
   3. https://app.astrobin.com/u/Wolfgang-Promper
   4. https://www.ogetay.com/
   5. https://www.mtu.edu/physics/
   6. https://science.nasa.gov/universe/decoding-nebulae/
   7. https://spinoff.nasa.gov/NASA_Hydrogen_History_Informs_World’s_Hydrogen_Future
   8. https://en.wikipedia.org/wiki/Oxygen
   9. https://apod.nasa.gov/apod/ap200329.html
  10. https://app.astrobin.com/u/Wolfgang-Promper?i=3n21nh#gallery
  11. https://en.wikipedia.org/wiki/Hydrogen
  12. https://periodic.lanl.gov/8.shtml
  13. https://en.wikipedia.org/wiki/NGC_55
  14. https://apod.nasa.gov/apod/ap240606.html
  15. https://apod.nasa.gov/apod/ap040724.html
  16. https://apod.nasa.gov/apod/ap190712.html
  17. https://science.nasa.gov/resource/the-milky-way-galaxy/
  18. https://apod.nasa.gov/apod/ap241002.html
  19. https://spaceplace.nasa.gov/light-year/
  20. https://media.istockphoto.com/id/1318976815/photo/cute-cat-hiding-under-the-blanket.jpg?s=612x612&w=0&k=20&c=MU772pD5-bo_-GuZtbWepzLPu_YVpx1pQUnIuoysgD4=
  21. https://en.wikipedia.org/wiki/Emission_nebula
  22. https://apod.nasa.gov/apod/ap251106.html
  23. https://science.nasa.gov/universe/stars/
  24. https://www.scigames.org/apps/webjigsaw2/index.php
  25. https://apod.nasa.gov/apod/ap260125.html
  26. https://apod.nasa.gov/apod/archivepix.html
  27. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  28. https://apod.nasa.gov/apod/lib/aptree.html
  29. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  30. https://apod.nasa.gov/apod/calendar/allyears.html
  31. https://apod.com/feed.rss
  32. https://apod.nasa.gov/apod/lib/edlinks.html
  33. https://apod.nasa.gov/apod/lib/about_apod.html
  34. https://asterisk.apod.com/discuss_apod.php?date=260126
  35. https://apod.nasa.gov/apod/ap260127.html
  36. http://www.phy.mtu.edu/faculty/Nemiroff.html
  37. http://www.phy.mtu.edu/
  38. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  39. http://www.astro.umd.edu/
  40. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  41. https://www.nasa.gov/about/highlights/HP_Privacy.html
  42. https://www.nasa.gov/general/accessibility/
  43. https://www.nasa.gov/privacy/
  44. https://astrophysics.gsfc.nasa.gov/
  45. https://www.nasa.gov/
  46. https://www.nasa.gov/centers/goddard/
  47. https://science.nasa.gov/learners
  48. http://www.mtu.edu/