                         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 20
                         A Total Lunar Eclipse Video
  Video Credit & Copyright: Jun Ho Oh (KAIST [2] , HuboLab [3] ), Kwon O Chul
               (TWAN [4] ), Jeong ByoungJun [5]  (RainbowAstro)

Explanation: Tonight a bright full Moon will fade to red. Tonight's moon [6]
will be particularly bright because it is reaching its fully lit phase when it
is relatively close to the Earth in its elliptical orbit [7] . In fact, by
some measures of size and brightness, tonight's full Moon is designated a
supermoon [8] , although perhaps the "super" is overstated [9] because it will
be only a few percent larger and brighter than the average full Moon. However,
our Moon will fade to a dim red [10]  because it will also undergo a total
lunar eclipse [11]  -- an episode when the Moon becomes completely engulfed in
Earth's shadow. The faint red [12]  color results from blue sunlight being
more strongly scattered away by the Earth's atmosphere. A January full moon,
like the one visible tonight, is referred to as a Wolf Moon [13]  in some
cultures. Tonight's supermoon total eclipse [14]  will last over an hour and
be best visible [15]  from North [16] and South America [17] after sunset. The
featured time-lapse video [18] shows the last total lunar eclipse [19]  --
which occurred in 2018 July. The next total lunar eclipse [20]  will occur
only in 2021 May.

                      Tomorrow's picture: selfie on mars

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    Authors & editors: Robert Nemiroff [32] (MTU [33] ) & Jerry Bonnell [34]
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Site notes:
  [1] archivepix.html
  [2] http://www.kaist.ac.kr/html/en/index.html
  [3] http://hubolab.kaist.ac.kr/
  [4]
http://www.twanight.org/newTWAN/
photographers_about.asp?photographer=Kwon%20O%20Chul
  [5]
https://www.facebook.com/jeong.byoungjun/
about?lst=6607177%3A100001663870318%3A1547860416
  [6] https://en.wikipedia.org/wiki/January_2019_lunar_eclipse
  [7] http://www.cso.caltech.edu/outreach/log/NIGHT_DAY/elliptical.htm
  [8] https://en.wikipedia.org/wiki/Supermoon
  [9]
http://i.embed.ly/1/display/
resize?key=1e6a1a1efdb011df84894040444cdc60&url=http%3A%2F%2Fpbs.twimg.
com%2Fmedia%2FBnXQFdZCMAAmw1H.jpg
  [10] ap150408.html
  [11] ap141005.html
  [12] ap140418.html
  [13] https://www.timeanddate.com/astronomy/moon/wolf.html
  [14]
http://science.nasa.gov/science-news/science-at-nasa/2015/22sep_lunareclipse/
  [15] http://eclipse.gsfc.nasa.gov/LEplot/LEplot2001/LE2019Jan21T.pdf
  [16] https://en.wikipedia.org/wiki/North_America
  [17] https://en.wikipedia.org/wiki/South_America
  [18] https://vimeo.com/284290238
  [19] ap180730.html
  [20] https://eclipse.gsfc.nasa.gov/LEdecade/LEdecade2021.html
  [21] ap190119.html
  [22] archivepix.html
  [23] lib/apsubmit2015.html
  [24] lib/aptree.html
  [25] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [26] calendar/allyears.html
  [27] /apod.rss
  [28] lib/edlinks.html
  [29] lib/about_apod.html
  [30] http://asterisk.apod.com/discuss_apod.php?date=190120
  [31] ap190121.html
  [32] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [33] http://www.phy.mtu.edu/
  [34] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [35] http://www.astro.umd.edu/
  [36] lib/about_apod.html#srapply
  [37] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [38] https://astrophysics.gsfc.nasa.gov/
  [39] https://www.nasa.gov/
  [40] https://www.nasa.gov/centers/goddard/
  [41] http://www.mtu.edu/
