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 April 5
   [2]The featured image shows a wide field with the red California Nebula
   on the far left, the blue Pleiades Star Cluster on the right, and much
   brown interstellar dust in between. Please see the explanation for more
                            detailed information.

                       Seven Sisters versus California
                 Image Credit & Copyright: [3]Neven Krcmarek

   Explanation: On the upper right, dressed in blue, is the [4]Pleiades.
   Also known as the [5]Seven Sisters and [6]M45, [7]the Pleiades is one
   of the brightest and [8]most easily visible [9]open clusters on the
   sky. [10]The Pleiades contains over 3,000 stars, is about 400 light
   years away, and only 13 light years across. [11]Surrounding the stars
   is a spectacular blue [12]reflection nebula made of fine [13]dust.
   [14]A common legend is that one of the brighter stars faded since the
   cluster was named. On the lower left, shining in red, is the
   [15]California Nebula. Named for its shape, the [16]California Nebula
   is much dimmer and hence harder to see than [17]the Pleiades. Also
   known as [18]NGC 1499, this mass of red glowing hydrogen gas is about
   1,500 [19]light years away. Although about 25 full moons could fit
   [20]between them, the [21]featured wide angle, deep field image
   composite has captured [22]them [23]both. A [24]careful inspection of
   the deep image will also reveal the star forming region [25]IC 348 and
   the [26]molecular cloud [27]LBN 777 (the Baby Eagle Nebula).

                        Tomorrow's picture: far star
     __________________________________________________________________

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    Authors & editors: [39]Robert Nemiroff ([40]MTU) & [41]Jerry Bonnell
                                 ([42]UMCP)
          NASA Official: Phillip Newman [43]Specific rights apply.
              [44]NASA Web Privacy Policy and Important Notices
                A service of: [45]ASD at [46]NASA / [47]GSFC
                           & [48]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2204/Calif2Pleiades_Krcmarek_10000.jpg
   3. https://www.astrobin.com/users/NevenKrcmarek/
   4. https://apod.nasa.gov/apod/ap950620.html
   5. https://www.naic.edu/~gibson/pleiades/pleiades_myth.html
   6. https://en.wikipedia.org/wiki/Pleiades
   7. https://apod.nasa.gov/apod/ap211124.html
   8. https://apod.nasa.gov/apod/ap170314.html
   9. https://apod.nasa.gov/apod/open_clusters.html
  10. https://www.naic.edu/~gibson/pleiades/
  11. https://apod.nasa.gov/apod/ap200323.html
  12. https://en.wikipedia.org/wiki/Reflection_nebula
  13. https://apod.nasa.gov/apod/lib/glossary.html#dust
  14. https://arxiv.org/pdf/0810.1592
  15. https://apod.nasa.gov/apod/ap060924.html
  16. https://en.wikipedia.org/wiki/California
  17. https://youtu.be/V0qMKgeVR5M
  18. https://en.wikipedia.org/wiki/California_Nebula
  19. https://chandra.harvard.edu/photo/cosmic_distance.html
  20. https://apod.nasa.gov/apod/ap090411.html
  21. https://www.astrobin.com/id3tq9/
  22. https://apod.nasa.gov/apod/ap960618.html
  23. https://apod.nasa.gov/apod/ap090212.html
  24. https://i.dailymail.co.uk/1s/2022/03/30/20/56019439-10669595-This_adorable_tiny_kitten_who_is_entranced_by_the_computer_scree-m-73_1648669189326.jpg
  25. https://apod.nasa.gov/apod/ap151010.html
  26. https://en.wikipedia.org/wiki/Molecular_cloud
  27. https://noirlab.edu/public/images/noao-lbn777/
  28. https://apod.nasa.gov/apod/ap220404.html
  29. https://apod.nasa.gov/apod/archivepix.html
  30. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  31. https://apod.nasa.gov/apod/lib/aptree.html
  32. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  33. https://apod.nasa.gov/apod/calendar/allyears.html
  34. https://apod.nasa.gov/apod.rss
  35. https://apod.nasa.gov/apod/lib/edlinks.html
  36. https://apod.nasa.gov/apod/lib/about_apod.html
  37. http://asterisk.apod.com/discuss_apod.php?date=220405
  38. https://apod.nasa.gov/apod/ap220406.html
  39. http://www.phy.mtu.edu/faculty/Nemiroff.html
  40. http://www.phy.mtu.edu/
  41. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  42. http://www.astro.umd.edu/
  43. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  44. https://www.nasa.gov/about/highlights/HP_Privacy.html
  45. https://astrophysics.gsfc.nasa.gov/
  46. https://www.nasa.gov/
  47. https://www.nasa.gov/centers/goddard/
  48. http://www.mtu.edu/