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 September 12
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                      Lunar Eclipse in Two Hemispheres
    Image Credit & [3]Copyright: North - [4]Zhouyue Zhu, South - [5]Lucy
                                  Yunxi Hu

   Explanation: [6]September's total lunar eclipse is tracked across night
   skies from both the northern and southern hemispheres of [7]planet
   Earth in these two dramatic timelapse series. In the northern
   hemisphere sequence (top panel) the Moon’s trail arcs from the upper
   left to the lower right. It passes below bright planet Saturn, seen
   under mostly clear skies from the international campus of Zhejiang
   University in China at about 30 degrees north latitude. In contrast,
   the southern hemisphere view from Lake Griffin, Canberra, Australia at
   35 degrees south latitude, records the Moon’s trail from the upper
   right to the lower left. Multiple [8]lightning flashes from
   thunderstorms near the horizon appear reflected in the lake. Both
   sequences were photographed with 16mm wide-angle lenses and both cover
   [9]the entire eclipse, with the darkened red Moon totally immersed in
   Earth's [10]umbral shadow near center. But the different orientations
   of the Moon’s path across the sky reveal the perspective shifts caused
   by the views from [11]northern vs. southern latitudes.

                  Tomorrow's picture: one mile star trails
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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, [29]Accessibility, [30]Notices;
                A service of: [31]ASD at [32]NASA / [33]GSFC,
                         [34]NASA Science Activation
                           & [35]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2509/APODtwo_hemisphere_combined_no_text.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.fantasticjoe.com/
   5. https://www.astrolucyhu.com/about-lucy
   6. https://earthsky.org/astronomy-essentials/total-lunar-eclipse-september-7-2025/
   7. https://science.nasa.gov/earth/
   8. https://apod.nasa.gov/apod/ap250727.html
   9. https://science.nasa.gov/moon/eclipses/
  10. https://apod.nasa.gov/apod/ap250911.html
  11. https://apod.nasa.gov/apod/ap100115.html
  12. https://apod.nasa.gov/apod/ap250911.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.com/feed.rss
  19. https://apod.nasa.gov/apod/lib/edlinks.html
  20. https://apod.nasa.gov/apod/lib/about_apod.html
  21. https://asterisk.apod.com/discuss_apod.php?date=250912
  22. https://apod.nasa.gov/apod/ap250913.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://www.nasa.gov/general/accessibility/
  30. https://www.nasa.gov/privacy/
  31. https://astrophysics.gsfc.nasa.gov/
  32. https://www.nasa.gov/
  33. https://www.nasa.gov/centers/goddard/
  34. https://science.nasa.gov/learners
  35. http://www.mtu.edu/