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.

                               2021 August 31
    [2]The picture shows the full moon in high resolution and exaggerated
      colors. Please see the explanation for more detailed information.

                      A Blue Moon in Exaggerated Colors
                  Image Credit & Copyright: [3]Robert Fedez

   Explanation: The Moon is normally seen in subtle shades of grey or
   [4]gold. But small, measurable [5]color differences have been
   [6]greatly exaggerated to make this telescopic, multicolored,
   [7]moonscape captured during the Moon's full phase. The different
   colors are recognized to correspond to real differences in the chemical
   makeup of the [8]lunar surface. Blue hues reveal [9]titanium rich areas
   while orange and purple colors show regions relatively poor in titanium
   and [10]iron. The familiar [11]Sea of Tranquility, or [12]Mare
   Tranquillitatis, is the blue area toward the upper right. White lines
   radiate across the orange-hued southern [13]lunar highlands from
   85-kilometer wide [14]ray-crater Tycho at bottom right. The full moon
   that occurred earlier this month could be counted as a [15]seasonal
   blue moon because it was, unusually, the [16]third of four full moons
   to occur during northern summer (and hence southern winter). The
   featured 272-image composite demonstrates that the [17]full Moon is
   always blue, but usually not blue enough in hue to [18]ooh.

                Almost Hyperspace: [19]Random APOD Generator
                     Tomorrow's picture: galactic ghosts
     __________________________________________________________________

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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]Michigan Tech. U.

References

   1. https://apod.nasa.gov/apod/archivepix.html
   2. https://apod.nasa.gov/apod/image/2108/Luna_Fedez_1600.jpg
   3. https://www.facebook.com/RobertFedezz
   4. https://apod.nasa.gov/apod/ap201111.html
   5. https://apod.nasa.gov/apod/ap030829.html
   6. https://e4p7c9i3.stackpathcdn.com/wp-content/uploads/2016/03/25-60.jpg
   7. https://apod.nasa.gov/apod/ap031109.html
   8. https://solarsystem.nasa.gov/moons/earths-moon/in-depth/
   9. http://www.psrd.hawaii.edu/Dec00/highTi.html
  10. https://www.usgs.gov/science-support/osqi/yes/resources-teachers/find-a-feature-red-rocks
  11. https://www.nasa.gov/exploration/home/19jul_seaoftranquillity.html
  12. https://en.wikipedia.org/wiki/Mare_Tranquillitatis
  13. https://upload.wikimedia.org/wikipedia/commons/6/61/Moon_names.svg
  14. https://solarsystem.nasa.gov/resources/2264/tycho-crater-on-the-moon-labeled/
  15. https://en.wikipedia.org/wiki/Blue_moon#Seasonal
  16. https://skyandtelescope.org/astronomy-news/true-blue-moon/
  17. https://earthsky.org/astronomy-essentials/when-is-the-next-blue-moon/
  18. https://en.wiktionary.org/wiki/ooh#Interjection
  19. https://apod.nasa.gov/apod/random_apod.html
  20. https://apod.nasa.gov/apod/ap210830.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=210831
  30. https://apod.nasa.gov/apod/ap210901.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. http://www.mtu.edu/