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.

                                 2024 May 20
    [2]A large purple transparent dome appears to cover much of a starry
    sky. A person stands in a field looking toward the unusual spectacle.
          Please see the explanation for more detailed information.

                               Aurora Dome Sky
          Image Credit & Copyright: [3]Xuecheng Liu & [4]Yuxuan Liu

   Explanation: It seemed like night, but part of the sky glowed purple.
   It was the now famous night of May 10, 2024, when [5]people over much
   of the world reported beautiful aurora-filled skies. The featured image
   was captured this night during early morning hours from [6]Arlington,
   [7]Wisconsin, [8]USA. The panorama is a composite of several 6-second
   exposures covering two thirds of the visible sky, with [9]north in the
   center, and processed to heighten the colors and remove electrical
   wires. The photographer (in the foreground) reported that the
   [10]aurora appeared to flow from a point overhead but illuminated the
   sky only toward the [11]north. The aurora's energetic particles
   originated from [12]CMEs [13]ejected from our Sun over sunspot [14]AR
   6443 a few days before. This [15]large active region rotated to the far
   side of the Sun last week, but [16]may well survive to rotate back
   toward the [17]Earth next week.

                      Tomorrow's picture: hungry cloud
     __________________________________________________________________

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    Authors & editors: [29]Robert Nemiroff ([30]MTU) & [31]Jerry Bonnell
                                 ([32]UMCP)
          NASA Official: Amber Straughn [33]Specific rights apply.
            [34]NASA Web Privacy, [35]Accessibility, [36]Notices;
                A service of: [37]ASD at [38]NASA / [39]GSFC,
                         [40]NASA Science Activation
                           & [41]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2405/AuroraWisconsin_Liu_6000.jpg
   3. mailto: xuechengliu1211(at)qq(dot)com
   4. mailto: yuxuanliu1219(at)outlook(dot)com
   5. https://www.facebook.com/media/set/?set=a.431368006258449&type=3
   6. https://en.wikipedia.org/wiki/Arlington,_Wisconsin
   7. https://en.wikipedia.org/wiki/Wisconsin
   8. https://en.wikipedia.org/wiki/United_States
   9. https://apod.nasa.gov/apod/ap240518.html
  10. https://spaceplace.nasa.gov/aurora/en/
  11. https://apod.nasa.gov/apod/ap200212.html
  12. https://en.wikipedia.org/wiki/Coronal_mass_ejection
  13. https://i.pinimg.com/736x/77/30/f7/7730f7bb82f011c58c53b31793ba3c51.jpg
  14. https://apod.nasa.gov/apod/ap240513.html
  15. https://apod.nasa.gov/apod/ap240511.html
  16. https://science.nasa.gov/get-involved/citizen-science/be-a-solar-active-region-spotter/
  17. https://apod.nasa.gov/apod/ap220227.html
  18. https://apod.nasa.gov/apod/ap240519.html
  19. https://apod.nasa.gov/apod/archivepix.html
  20. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  21. https://apod.nasa.gov/apod/lib/aptree.html
  22. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  23. https://apod.nasa.gov/apod/calendar/allyears.html
  24. https://apod.com/feed.rss
  25. https://apod.nasa.gov/apod/lib/edlinks.html
  26. https://apod.nasa.gov/apod/lib/about_apod.html
  27. https://asterisk.apod.com/discuss_apod.php?date=240520
  28. https://apod.nasa.gov/apod/ap240521.html
  29. http://www.phy.mtu.edu/faculty/Nemiroff.html
  30. http://www.phy.mtu.edu/
  31. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  32. http://www.astro.umd.edu/
  33. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  34. https://www.nasa.gov/about/highlights/HP_Privacy.html
  35. https://www.nasa.gov/general/accessibility/
  36. https://www.nasa.gov/privacy/
  37. https://astrophysics.gsfc.nasa.gov/
  38. https://www.nasa.gov/
  39. https://www.nasa.gov/centers/goddard/
  40. https://science.nasa.gov/learners
  41. http://www.mtu.edu/