               APOD: 2017 December 7 - All the Eclipses of 2017

                         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 December 7
                                      [2]
                          All the Eclipses of 2017
                Image Credit & Copyright [3] : Petr Horalek [4]

Explanation: As seen from planet Earth [5] , all the lunar and solar eclipses
of 2017 are represented at the same scale in these four panels. The year's
celestial shadow play was followed through four different countries by one
adventurous eclipse chaser. To kick off the eclipse season, at top left
February's Full Moon [6] was captured from the Czech Republic. Its subtle
shading [7] , a penumbral lunar eclipse, is due to Earth's lighter outer
shadow. Later that month the New Moon at top right was surrounded by a ring of
fire [8] , recorded on film from Argentina near the midpoint of striking
annular solar eclipse. The August eclipse pairing below finds the Earth's dark
umbral shadow [9]  in a partial eclipse from Germany at left, and the vibrant
solar corona surrounding a totally eclipsed Sun from the western USA [10] . If
you're keeping score, the Saros numbers [11]  (eclipse cycles) for all the
2017 eclipses are at bottom left in each panel.

                   Tomorrow's picture: pixels in space [12]

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    Authors & editors: Robert Nemiroff [24] (MTU [25] ) & Jerry Bonnell [26]
                                  (UMCP [27] )
          NASA Official:  Phillip Newman Specific rights apply [28] .
              NASA Web Privacy Policy and Important Notices [29]
              A service of: ASD [30]  at NASA [31]  / GSFC [32]
                           & Michigan Tech. U. [33]
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Site notes:
  [1] archivepix.html
  [2] image/1712/2017AllEclipses_1800px.jpg
  [3] lib/about_apod.html#srapply
  [4] http://www.astronom.cz/horalek/?page_id=20
  [5] http://www.astronom.cz/horalek/?p=3504
  [6] https://moon.nasa.gov/
  [7] ap170218.html
  [8] ap170301.html
  [9] ap170809.html
  [10] ap171007.html
  [11] ap17811.html
  [12] ap171208.html
  [13] ap171206.html
  [14] archivepix.html
  [15] lib/apsubmit2015.html
  [16] lib/aptree.html
  [17] http://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [18] calendar/allyears.html
  [19] /apod.rss
  [20] lib/edlinks.html
  [21] lib/about_apod.html
  [22] http://asterisk.apod.com/discuss_apod.php?date=171207
  [23] ap171208.html
  [24] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [25] http://www.phy.mtu.edu/
  [26] http://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [27] http://www.astro.umd.edu/
  [28] lib/about_apod.html#srapply
  [29] http://www.nasa.gov/about/highlights/HP_Privacy.html
  [30] http://astrophysics.gsfc.nasa.gov/
  [31] http://www.nasa.gov/
  [32] http://www.nasa.gov/centers/goddard/
  [33] http://www.mtu.edu/
