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 August 23
    [2]See Explanation. Clicking on the picture will download the highest
                        resolution version available.

                            Fishing for the Moon
                 Image Credit & [3]Copyright: Marco Bellelli

   Explanation: [4]How big is planet Earth's Moon? Compared to other moons
   of the Solar System, it's number 5 on the [5]largest to smallest ranked
   list, following Jupiter's moon [6]Ganymede, Saturn's moon [7]Titan, and
   Jovian moons [8]Callisto and [9]Io. Continuing the list, the Moon comes
   before Jupiter's [10]Europa and Neptune's [11]Triton. It's also larger
   than [12]dwarf planets Pluto and Eris. With a diameter of 3,475
   kilometers the Moon is about 1/4 the size of Earth though, and that
   does make it the largest moon when compared to the size of its parent
   Solar System planet. Of course in this serene, twilight sea and
   skyscape, August's rising Full Moon still appears small enough to be
   caught in the nets of an ancient fishing rig. The telephoto snapshot
   was taken along the Italian Costa dei [13]Trabocchi, on the Adriatic
   Sea.

                    Tomorrow's picture: 30 times a second
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    Authors & editors: [25]Robert Nemiroff ([26]MTU) & [27]Jerry Bonnell
                                 ([28]UMCP)
          NASA Official: Amber Straughn [29]Specific rights apply.
            [30]NASA Web Privacy, [31]Accessibility, [32]Notices;
                A service of: [33]ASD at [34]NASA / [35]GSFC,
                         [36]NASA Science Activation
                           & [37]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2508/1000212902_bellelli.jpg
   3. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
   4. https://science.nasa.gov/moon/facts/
   5. https://en.wikipedia.org/wiki/List_of_Solar_System_objects_by_size
   6. https://apod.nasa.gov/apod/ap231128.html
   7. https://apod.nasa.gov/apod/ap250503.html
   8. https://apod.nasa.gov/apod/ap020120.html
   9. https://apod.nasa.gov/apod/ap231023.html
  10. https://apod.nasa.gov/apod/ap240329.html
  11. https://apod.nasa.gov/apod/ap140826.html
  12. https://en.wikipedia.org/wiki/Dwarf_planet
  13. https://en.wikipedia.org/wiki/Trabocchi_Coast
  14. https://apod.nasa.gov/apod/ap250822.html
  15. https://apod.nasa.gov/apod/archivepix.html
  16. https://apod.nasa.gov/apod/lib/apsubmit2015.html
  17. https://apod.nasa.gov/apod/lib/aptree.html
  18. https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  19. https://apod.nasa.gov/apod/calendar/allyears.html
  20. https://apod.com/feed.rss
  21. https://apod.nasa.gov/apod/lib/edlinks.html
  22. https://apod.nasa.gov/apod/lib/about_apod.html
  23. https://asterisk.apod.com/discuss_apod.php?date=250823
  24. https://apod.nasa.gov/apod/ap250824.html
  25. http://www.phy.mtu.edu/faculty/Nemiroff.html
  26. http://www.phy.mtu.edu/
  27. https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  28. http://www.astro.umd.edu/
  29. https://apod.nasa.gov/apod/lib/about_apod.html#srapply
  30. https://www.nasa.gov/about/highlights/HP_Privacy.html
  31. https://www.nasa.gov/general/accessibility/
  32. https://www.nasa.gov/privacy/
  33. https://astrophysics.gsfc.nasa.gov/
  34. https://www.nasa.gov/
  35. https://www.nasa.gov/centers/goddard/
  36. https://science.nasa.gov/learners
  37. http://www.mtu.edu/