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 October 9
     [2]The featured image tipis below a night sky lit up with multiple
         green auroras. Please see the explanation for more detailed
                                information.

                        Auroras over Northern Canada
             Image Credit & Copyright: [3]Kwon, O Chul ([4]TWAN)

   Explanation: Gusting [5]solar winds and [6]blasts of charged particles
   from the Sun resulted in several rewarding nights of [7]auroras back in
   2014 December, near the peak of the last 11-year [8]solar cycle. The
   [9]featured image captured dramatic auroras stretching across a sky
   near the town of [10]Yellowknife in [11]northern [12]Canada. The
   [13]auroras were so bright that they not only [14]inspired awe, but
   were easily visible on an image exposure of only 1.3 seconds. A
   [15]video taken concurrently shows the dancing sky lights evolving in
   real time as tourists, many there just to see [16]auroras, respond with
   [17]cheers. The [18]conical dwellings on the image right are [19]tipis,
   while far in the background, near the image center, is the
   [20]constellation of Orion. Auroras may increase again over the next
   few years as [21]our Sun again approaches [22]solar maximum.

                  Tomorrow's picture: double lunar analemma
     __________________________________________________________________

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    Authors & editors: [34]Robert Nemiroff ([35]MTU) & [36]Jerry Bonnell
                                 ([37]UMCP)
          NASA Official: Phillip Newman [38]Specific rights apply.
              [39]NASA Web Privacy Policy and Important Notices
                A service of: [40]ASD at [41]NASA / [42]GSFC,
                         [43]NASA Science Activation
                           & [44]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2210/aurora_kwon_1500.jpg
   3. https://twanight.org/profile/kwon-o-chul/
   4. https://www.twanight.org/
   5. https://apod.nasa.gov/apod/ap000318.html
   6. https://apod.nasa.gov/apod/ap020516.html
   7. http://www.exploratorium.edu/learning_studio/auroras/
   8. https://svs.gsfc.nasa.gov/13715
   9. https://twanight.org/gallery/after-a-solar-storm/
  10. https://youtu.be/S67UkPg9YCs
  11. https://en.wikipedia.org/wiki/Northwest_Territories
  12. https://en.wikipedia.org/wiki/Canada
  13. https://www.gi.alaska.edu/monitors/aurora-forecast
  14. https://as2.ftcdn.net/v2/jpg/01/96/39/23/1000_F_196392343_DbPxgZuoVHBsGN5ZAIqmTOqQwP0y5rz8.jpg
  15. https://vimeo.com/85070976
  16. https://www.nasa.gov/mission_pages/sunearth/aurora-news-stories/index.html
  17. https://apod.nasa.gov/apod/ap170912.html
  18. http://vimeo.com/87930308
  19. http://en.wikipedia.org/wiki/Tipi
  20. https://apod.nasa.gov/apod/ap121221.html
  21. https://solarsystem.nasa.gov/solar-system/sun/in-depth/
  22. https://en.wikipedia.org/wiki/Solar_maximum
  23. https://apod.nasa.gov/apod/ap221008.html
  24. https://apod.nasa.gov/apod/archivepix.html
  25. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  26. https://apod.nasa.gov/apod/lib/aptree.html
  27. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  28. https://apod.nasa.gov/apod/calendar/allyears.html
  29. https://apod.nasa.gov/apod.rss
  30. https://apod.nasa.gov/apod/lib/edlinks.html
  31. https://apod.nasa.gov/apod/lib/about_apod.html
  32. http://asterisk.apod.com/discuss_apod.php?date=221009
  33. https://apod.nasa.gov/apod/ap221010.html
  34. http://www.phy.mtu.edu/faculty/Nemiroff.html
  35. http://www.phy.mtu.edu/
  36. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  37. http://www.astro.umd.edu/
  38. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  39. https://www.nasa.gov/about/highlights/HP_Privacy.html
  40. https://astrophysics.gsfc.nasa.gov/
  41. https://www.nasa.gov/
  42. https://www.nasa.gov/centers/goddard/
  43. https://science.nasa.gov/learners
  44. http://www.mtu.edu/