                  APOD: 2017 November 11 - A Colourful Moon

                         Astronomy Picture of the Day

    Discover the cosmos! [1] Each day a different image or photograph of our
 fascinating universe is featured, along with a brief explanation written by a
                           professional astronomer.

                               2017 November 11
                                      [2]
                              A Colourful Moon
               Image Credit & Copyright [3] : Alain Paillou [4]

Explanation: The Moon is normally seen [5]  in subtle shades of grey. But
small, measurable color differences have been greatly exaggerated in this
mosaic of high-resolution images captured near the Moon's full phase, to
construct a multicolored, central moonscape. The different colors are
recognized to correspond to real differences in the mineral makeup of the
lunar surface. Blue hues reveal titanium rich areas [6]  while more orange and
purple colors show regions relatively poor in titanium and iron. The
intriguing Sea of Vapors, or Mare Vaporum, is below center in the frame with
the sweeping arc [7] of the lunar Montes Apenninus (Apennine Mountains) above
it. The dark floor of 83 kilometer diameter Archimedes crater within the Sea
of Rains, or Mare Imbrium, is toward the top left. Near the gap at the top of
the Apennine's arc is the Apollo 15 landing site. Calibrated by rock samples
returned [8] by the Apollo missions, similar multicolor images from spacecraft
[9] have been used to explore the Moon's global surface composition [10] .

                 Tomorrow's picture: Venus smile Jupiter [11]

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    Authors & editors: Robert Nemiroff [23] (MTU [24] ) & Jerry Bonnell [25]
                                  (UMCP [26] )
          NASA Official:  Phillip Newman Specific rights apply [27] .
              NASA Web Privacy Policy and Important Notices [28]
              A service of: ASD [29]  at NASA [30]  / GSFC [31]
                           & Michigan Tech. U. [32]
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Site notes:
  [1] archivepix.html
  [2] image/1711/Central_Colours_Fullres.jpg
  [3] lib/about_apod.html#srapply
  [4] mailto: apaillou [at] free [dot] fr
  [5] http://moon.lindahall.org/
  [6] http://www.psrd.hawaii.edu/Dec00/highTi.html
  [7] ap001228.html
  [8] http://www.lpi.usra.edu/lunar/samples/
  [9] https://www.nasa.gov/multimedia/imagegallery/ image_feature_819.html
  [10] http://www.psrd.hawaii.edu/Dec04/LunarCrust.html
  [11] ap171112.html
  [12] ap171110.html
  [13] archivepix.html
  [14] lib/apsubmit2015.html
  [15] lib/aptree.html
  [16] http://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [17] calendar/allyears.html
  [18] /apod.rss
  [19] lib/edlinks.html
  [20] lib/about_apod.html
  [21] http://asterisk.apod.com/discuss_apod.php?date=171111
  [22] ap171112.html
  [23] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [24] http://www.phy.mtu.edu/
  [25] http://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [26] http://www.astro.umd.edu/
  [27] lib/about_apod.html#srapply
  [28] http://www.nasa.gov/about/highlights/HP_Privacy.html
  [29] http://astrophysics.gsfc.nasa.gov/
  [30] http://www.nasa.gov/
  [31] http://www.nasa.gov/centers/goddard/
  [32] http://www.mtu.edu/
