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.

                               2020 February 6
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                             Southern Moonscape
                  Image Credit & [3]Copyright: [4]Tom Glenn

   Explanation: [5]The Moon's south pole is near the top of this
   [6]detailed telescopic view. Looking across the rugged southern lunar
   highlands it was captured from southern California, planet Earth. [7]At
   the Moon's third quarter phase the lunar terminator, the sunset shadow
   line, is approaching from the left. The scene's foreshortened
   perspective heightens the impression of a dense field of craters and
   makes the craters themselves appear more oval shaped close to the lunar
   limb. Below and left of center is sharp-walled [8]crater Tycho, 85
   kilometers in diameter. Young Tycho's [9]central peak is still in
   sunlight, but casts a long shadow across the crater floor. The large
   prominent crater to the south (above) Tycho [10]is Clavius. Nearly 231
   kilometers in diameter its walls and floor are pocked with smaller,
   more recent, overlaying impact craters. Mountains visible along the
   lunar limb at the top can rise about 6 kilometers or so above the
   surrounding terrain.

                     Tomorrow's picture: pixels in space
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    Authors & editors: [22]Robert Nemiroff ([23]MTU) & [24]Jerry Bonnell
                                 ([25]UMCP)
          NASA Official: Phillip Newman [26]Specific rights apply.
              [27]NASA Web Privacy Policy and Important Notices
                A service of: [28]ASD at [29]NASA / [30]GSFC
                           & [31]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2002/SouthernMoonscapeClaviusTycho.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://www.flickr.com/photos/140032790@N06/
   5. http://lroc.sese.asu.edu/posts/237
   6. https://www.flickr.com/photos/140032790@N06/49433538942/
   7. https://svs.gsfc.nasa.gov/4769
   8. https://apod.nasa.gov/apod/ap050305.html
   9. http://lroc.sese.asu.edu/posts/384
  10. https://en.wikipedia.org/wiki/Clavius_(crater)
  11. https://apod.nasa.gov/apod/ap200205.html
  12. https://apod.nasa.gov/apod/archivepix.html
  13. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  14. https://apod.nasa.gov/apod/lib/aptree.html
  15. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  16. https://apod.nasa.gov/apod/calendar/allyears.html
  17. https://apod.nasa.gov/apod.rss
  18. https://apod.nasa.gov/apod/lib/edlinks.html
  19. https://apod.nasa.gov/apod/lib/about_apod.html
  20. http://asterisk.apod.com/discuss_apod.php?date=200206
  21. https://apod.nasa.gov/apod/ap200207.html
  22. http://www.phy.mtu.edu/faculty/Nemiroff.html
  23. http://www.phy.mtu.edu/
  24. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  25. http://www.astro.umd.edu/
  26. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  27. https://www.nasa.gov/about/highlights/HP_Privacy.html
  28. https://astrophysics.gsfc.nasa.gov/
  29. https://www.nasa.gov/
  30. https://www.nasa.gov/centers/goddard/
  31. http://www.mtu.edu/