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.

                                2023 April 20
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                        The Dark Seahorse in Cepheus
                 Image Credit & [3]Copyright: [4]Jeff Herman

   Explanation: Spanning light-years, this [5]suggestive shape known as
   the Seahorse Nebula appears in silhouette against a rich, luminous
   background of stars. Seen toward the royal northern constellation of
   Cepheus, the dusty, obscuring clouds are part of a Milky Way molecular
   cloud some 1,200 light-years distant. It is also listed as Barnard 150
   (B150), one of 182 [6]dark markings of the sky cataloged in the early
   20th century by astronomer [7]E. E. Barnard. Packs of low mass stars
   are forming [8]within, but their collapsing cores are only visible at
   long [9]infrared wavelengths. Still, the colorful stars of Cepheus add
   to this [10]pretty, galactic skyscape.

                     Tomorrow's picture: pixels in space
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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]NASA Science Activation
                           & [32]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2301/Barnard-150_LRGB_HIGH-RES.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. http://astro.ihermans.com/index.html
   5. https://ui.adsabs.harvard.edu/?#abs/1916ApJ....43....1B
   6. http://adsabs.harvard.edu/cgi-bin/bib_query?1919ApJ....49....1B
   7. https://exhibit-archive.library.gatech.edu/barnard/
   8. https://arxiv.org/abs/0809.4761
   9. https://science.nasa.gov/ems/07_infraredwaves
  10. http://astro.ihermans.com/nebulae/Barnard-150/index.html
  11. https://apod.nasa.gov/apod/ap230419.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=230420
  21. https://apod.nasa.gov/apod/ap230421.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. https://science.nasa.gov/learners
  32. http://www.mtu.edu/