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.

                               2018 November 28
                                      [2]
                       IC 1871: Inside the Soul Nebula
                  Image Credit & Copyright: Mark Hanson [3]

Explanation: This cosmic close-up [4]  looks deep inside the Soul Nebula [5] .
The dark and brooding dust cloud [6] s on the left, outlined by bright ridges
of glowing gas, are cataloged as IC 1871. About 25 light-years across, the
telescopic field of view spans only a small part of the much larger Heart and
Soul [7]  nebulae. At an estimated distance of 6,500 light-years the
star-forming complex lies within the Perseus spiral arm [8]  of our Milky Way
[9]  Galaxy, seen in planet Earth's skies toward the constellation Cassiopeia.
An example of triggered star formation [10] , the dense star-forming clouds of
IC 1871 are themselves sculpted by the intense winds and radiation of the
region's massive young stars. The featured image [11] appears mostly red due
to the emission of a specific color [12]  of light emitted by excited hydrogen
gas [13] .

                      Tomorrow's picture: southern skies

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    Authors & editors: Robert Nemiroff [25] (MTU [26] ) & Jerry Bonnell [27]
                                  (UMCP [28] )
          NASA Official:  Phillip Newman Specific rights apply [29] .
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              A service of: ASD [31]  at NASA [32]  / GSFC [33]
                           & Michigan Tech. U. [34]
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Site notes:
  [1] archivepix.html
  [2] image/1811/IC1871_Hanson_3922.jpg
  [3] https://www.hansonastronomy.com/bio/
  [4] https://www.hansonastronomy.com/ic-1871
  [5] ap160228.html
  [6] ap171008.html
  [7] ap161116.html
  [8] https://en.wikipedia.org/wiki/Perseus_Arm
  [9] ap080606.html
  [10] http://www.nasa.gov/mission_pages/spitzer/mul... 20080722.html
  [11] https://www.hansonastronomy.com/ic-1871
  [12] https://en.wikipedia.org/wiki/H-alpha
  [13] https://www.youtube.com/watch?v=nLuOM9aOWvk
  [14] ap181127.html
  [15] archivepix.html
  [16] lib/apsubmit2015.html
  [17] lib/aptree.html
  [18] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [19] calendar/allyears.html
  [20] /apod.rss
  [21] lib/edlinks.html
  [22] lib/about_apod.html
  [23] http://asterisk.apod.com/discuss_apod.php?dat...
  [24] ap181129.html
  [25] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [26] http://www.phy.mtu.edu/
  [27] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [28] http://www.astro.umd.edu/
  [29] lib/about_apod.html#srapply
  [30] https://www.nasa.gov/about/highlights/HP_Priv...
  [31] https://astrophysics.gsfc.nasa.gov/
  [32] https://www.nasa.gov/
  [33] https://www.nasa.gov/centers/goddard/
  [34] http://www.mtu.edu/

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