Astronomy Picture of the Day

                         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.

                                2019 January 30
                                      [2]
                  Wide Field View of Great American Eclipse
                Image Credit & Copyright: Nicolas Lefaudeux [3]

Explanation: Only in the fleeting darkness of a total solar eclipse is the
light of the solar corona easily visible. Normally overwhelmed by the bright
solar disk, the expansive corona [4] , the sun's outer atmosphere [5] , is an
alluring sight. But the subtle details and extreme ranges [6]  in the corona's
brightness, although discernible to the eye, are notoriously difficult to
photograph. Pictured here [7] , however, using over 120 images and meticulous
digital processing, is a detailed wide-angle image of the Sun's corona taken
during the Great American Eclipse [8]  in 2017 August. Clearly visible are
intricate layers [9]  and glowing caustics of an ever changing mixture of hot
gas and magnetic fields [10] . Hundreds of stars as faint as 11th magnitude
[11]  are visible behind the Moon and Sun, with Mars [12]  appearing in red on
the far right. The next total eclipse of the Sun [13]  will occur on July 2
and be visible [14]  during sunset from a thin swath across Chile [15]  and
Argentina [16] .

                     Tomorrow's picture: blue star bubble

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    Authors & editors: Robert Nemiroff [28] (MTU [29] ) & Jerry Bonnell [30]
                                  (UMCP [31] )
          NASA Official:  Phillip Newman Specific rights apply [32] .
              NASA Web Privacy Policy and Important Notices [33]
              A service of: ASD [34]  at NASA [35]  / GSFC [36]
                           & Michigan Tech. U. [37]
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Site notes:
  [1] archivepix.html
  [2] image/1901/AmEclipseWide_Lefaudeux_1932.jpg
  [3] https://hdr-astrophotography.com/a-propos/
  [4] ap180430.html
  [5] http://en.wikipedia.org/wiki/Corona
  [6] ap080920.html
  [7] https://hdr-astrophotography.com/large-fov/
  [8] https://eclipse2017.nasa.gov/eclipse-who-what...
  [9]
https://oxyfresh.com/wp-content/uploads/2016/...
oxyfresh-pets-cat-sleeping-eachother.jpg
  [10] https://www.nasa.gov/feature/goddard/2016/und...
  [11] https://en.wikipedia.org/wiki/Magnitude_(astr...
  [12] ap180709.html
  [13] https://en.wikipedia.org/wiki/Solar_eclipse_o...
  [14] https://upload.wikimedia.org/wikipedia/common...
  [15] https://en.wikipedia.org/wiki/Chile
  [16] https://en.wikipedia.org/wiki/Argentina
  [17] ap190129.html
  [18] archivepix.html
  [19] lib/apsubmit2015.html
  [20] lib/aptree.html
  [21] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [22] calendar/allyears.html
  [23] /apod.rss
  [24] lib/edlinks.html
  [25] lib/about_apod.html
  [26] http://asterisk.apod.com/discuss_apod.php?dat...
  [27] ap190131.html
  [28] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [29] http://www.phy.mtu.edu/
  [30] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [31] http://www.astro.umd.edu/
  [32] lib/about_apod.html#srapply
  [33] https://www.nasa.gov/about/highlights/HP_Priv...
  [34] https://astrophysics.gsfc.nasa.gov/
  [35] https://www.nasa.gov/
  [36] https://www.nasa.gov/centers/goddard/
  [37] http://www.mtu.edu/

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