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 2
                                      [2]
                    The Orion Nebula in Infrared from WISE
    Image Credit: WISE [3] , IRSA [4] , NASA [5] ; Processing & Copyright :
                            Francesco Antonucci [6]

Explanation: The Great Nebula in Orion is an intriguing place. Visible to the
unaided eye, it appears as a small fuzzy patch [7]  in the constellation of
Orion [8] . But this image [9] , an illusory-color four-panel mosaic taken in
different bands of infrared light [10]  with the Earth orbiting WISE
observatory [11] , shows the Orion Nebula [12] to be a bustling neighborhood
[13]  of recently formed stars, hot gas, and dark dust. The power behind much
of the Orion Nebula [14]  (M42) is the stars of the Trapezium [15]  star
cluster, seen near the center of the featured image [16] . The orange glow
surrounding the bright stars pictured here is their own starlight reflected
[17] by intricate dust filaments [18]  that cover much of the region [19] .
The current Orion Nebula cloud complex [20] , which includes [21]  the
Horsehead Nebula [22] , will slowly disperse over the next 100,000 years.

                 Free Download: 2019 APOD Calendar (v5) [23]
                        Tomorrow's picture: open space

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                                  (UMCP [38] )
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Site notes:
  [1] archivepix.html
  [2] image/1901/orionred_WISEantonucci_1824.jpg
  [3] https://www.nasa.gov/mission_pages/WISE/main/
  [4] https://irsa.ipac.caltech.edu/Missions/wise.h...
  [5] https://www.nasa.gov/
  [6] mailto: francesco .dot. antonucci  fastwebnet .dot. it
  [7] ap030207.html
  [8] http://www.astro.wisc.edu/~dolan/constellatio...
constellations/Orion.html
  [9] http://www.astrobin.com/141393/0/
  [10] http://coolcosmos.ipac.caltech.edu/cosmic_cla...
  [11] http://www.nasa.gov/mission_pages/WISE/missio...
  [12] http://en.wikipedia.org/wiki/Orion_Nebula
  [13] http://www.jpl.nasa.gov/news/news.php?release...
  [14] ap120715.html
  [15] ap050710.html
  [16] http://www.astrobin.com/141393/0/
  [17] ap120215.html
  [18] ap120612.html
  [19] ap980612.html
  [20] ap101023.html
  [21] ap141111.html
  [22] ap140728.html
  [23] https://apod.nasa.gov/apod/image/1812/ApodCal...
  [24] ap190101.html
  [25] archivepix.html
  [26] lib/apsubmit2015.html
  [27] lib/aptree.html
  [28] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [29] calendar/allyears.html
  [30] /apod.rss
  [31] lib/edlinks.html
  [32] lib/about_apod.html
  [33] http://asterisk.apod.com/discuss_apod.php?dat...
  [34] ap190103.html
  [35] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [36] http://www.phy.mtu.edu/
  [37] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [38] http://www.astro.umd.edu/
  [39] lib/about_apod.html#srapply
  [40] https://www.nasa.gov/about/highlights/HP_Priv...
  [41] https://astrophysics.gsfc.nasa.gov/
  [42] https://www.nasa.gov/
  [43] https://www.nasa.gov/centers/goddard/
  [44] http://www.mtu.edu/

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