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 January 22
   [2]A person stands on a steep snow-covered hill with their arms raised.
   In the distance green aurora are visible. Past that stars are visible.
          Please see the explanation for more detailed information.

                    In Green Company: Aurora over Norway
                    Image Credit & Copyright: [3]Max Rive

   Explanation: Raise your arms if you see an aurora. With those
   instructions, two nights went by with, well, [4]clouds -- mostly. On
   the third night of returning to same peaks, though, the sky not only
   cleared up but lit up with a [5]spectacular auroral display. Arms went
   high in the air, patience and experience [6]paid off, and the creative
   [7]featured image was captured as a composite from three separate
   exposures. The setting is a summit of the [8]Austnesfjorden [9]fjord
   close to the town of [10]Svolvear on the [11]Lofoten islands in
   northern [12]Norway. The time was early 2014. Although our [13]Sun
   passed the [14]solar minimum of its [15]11-year cycle only a few years
   ago, [16]surface activity is [17]picking up and already triggering more
   [18]spectacular auroras here on [19]Earth.

                    Tomorrow's picture: dueling galaxies
     __________________________________________________________________

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    Authors & editors: [31]Robert Nemiroff ([32]MTU) & [33]Jerry Bonnell
                                 ([34]UMCP)
          NASA Official: Phillip Newman [35]Specific rights apply.
              [36]NASA Web Privacy Policy and Important 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/2301/greencompany_rive_2916.jpg
   3. https://www.instagram.com/maxrivephotography/
   4. https://cloudappreciationsociety.org/
   5. https://apod.nasa.gov/apod/ap221009.html
   6. https://hiawasseevet.com/wp-content/uploads/2021/08/smiling-cat-for-web-300x250.jpg
   7. https://www.flickr.com/photos/apojapo/13297070714/
   8. http://no.wikipedia.org/wiki/Austnesfjorden
   9. http://en.wikipedia.org/wiki/Fjord
  10. https://youtu.be/e8_mxu86Jps
  11. http://en.wikipedia.org/wiki/Lofoten
  12. https://en.wikipedia.org/wiki/Norway
  13. https://solarsystem.nasa.gov/solar-system/sun/overview/
  14. https://apod.nasa.gov/apod/ap190306.html
  15. https://scied.ucar.edu/sunspot-cycle
  16. https://apod.nasa.gov/apod/ap160919.html
  17. https://apod.nasa.gov/apod/ap230114.html
  18. https://apod.nasa.gov/apod/ap190218.html
  19. https://solarsystem.nasa.gov/planets/earth/overview/
  20. https://apod.nasa.gov/apod/ap230121.html
  21. https://apod.nasa.gov/apod/archivepix.html
  22. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  23. https://apod.nasa.gov/apod/lib/aptree.html
  24. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  25. https://apod.nasa.gov/apod/calendar/allyears.html
  26. https://apod.nasa.gov/apod.rss
  27. https://apod.nasa.gov/apod/lib/edlinks.html
  28. https://apod.nasa.gov/apod/lib/about_apod.html
  29. http://asterisk.apod.com/discuss_apod.php?date=230122
  30. https://apod.nasa.gov/apod/ap230123.html
  31. http://www.phy.mtu.edu/faculty/Nemiroff.html
  32. http://www.phy.mtu.edu/
  33. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  34. http://www.astro.umd.edu/
  35. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  36. https://www.nasa.gov/about/highlights/HP_Privacy.html
  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/