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.

                                2025 March 20
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                     The Solar Eclipse Analemma Project
                Image Credit & [3]Copyright: [4]Hunter Wells

   Explanation: Recorded from 2024 March 10, to 2025 March 1, this
   composited series of images [5]reveals a pattern in the seasonal drift
   of the Sun's daily motion through planet Earth's sky. Known to some as
   [6]an analemma, the figure-eight curve was captured in exposures taken
   on the indicated dates only at 18:38 UTC from the exact same
   [7]location south of Stephenville, Texas. The Sun's position on the
   2024 [8]solstice dates of June 20 and December 21 would be at the top
   and bottom of the curve and correspond to the astronomical beginning of
   summer and winter in the north. Points that lie along the curve
   [9]half-way between the solstices would mark the equinoxes. The 2024
   equinox on September 22, and in 2025 the [10]equinox on March 20
   (today) are the start of northern fall and spring. And since one of the
   exposures was made on 2024 April 8 from the Stephenville location at
   18:38:40 UTC, this analemma project also reveals the solar corona in
   planet Earth's sky during a [11]total solar eclipse.

                     Tomorrow's picture: pixels in space
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    Authors & editors: [23]Robert Nemiroff ([24]MTU) & [25]Jerry Bonnell
                                 ([26]UMCP)
          NASA Official: Amber Straughn [27]Specific rights apply.
              [28]NASA Web Privacy Policy and Important Notices
                A service of: [29]ASD at [30]NASA / [31]GSFC,
                         [32]NASA Science Activation
                           & [33]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2503/HunterWells_submission3-3.png
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.youtube.com/watch?v=0tGkLhf2XGo
   5. https://apod.nasa.gov/apod/ap241204.html
   6. https://ui.adsabs.harvard.edu/abs/2013arXiv1302.0765H/abstract
   7. https://www.youtube.com/watch?v=0tGkLhf2XGo
   8. https://apod.nasa.gov/apod/ap241221.html
   9. https://en.wikipedia.org/wiki/Analemma#/media/File:Analemma_Earth.png
  10. https://apod.nasa.gov/apod/ap190320.html
  11. https://science.nasa.gov/solar-system/skywatching/april-8-total-solar-eclipse-through-the-eyes-of-nasa/
  12. https://apod.nasa.gov/apod/ap250319.html
  13. https://apod.nasa.gov/apod/archivepix.html
  14. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  15. https://apod.nasa.gov/apod/lib/aptree.html
  16. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  17. https://apod.nasa.gov/apod/calendar/allyears.html
  18. https://apod.nasa.gov/apod.rss
  19. https://apod.nasa.gov/apod/lib/edlinks.html
  20. https://apod.nasa.gov/apod/lib/about_apod.html
  21. http://asterisk.apod.com/discuss_apod.php?date=250320
  22. https://apod.nasa.gov/apod/ap250321.html
  23. http://www.phy.mtu.edu/faculty/Nemiroff.html
  24. http://www.phy.mtu.edu/
  25. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  26. http://www.astro.umd.edu/
  27. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  28. https://www.nasa.gov/about/highlights/HP_Privacy.html
  29. https://astrophysics.gsfc.nasa.gov/
  30. https://www.nasa.gov/
  31. https://www.nasa.gov/centers/goddard/
  32. https://science.nasa.gov/learners
  33. http://www.mtu.edu/