                         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 May 7
                                      [2]
                          The Great Nebula in Carina
      Image Credit & Copyright: Dieter Willasch [3] (Astro-Cabinet [4] )

Explanation: What's happening in the center of the Carina Nebula? Stars are
forming, dying, and leaving an impressive tapestry [5]  of dark dusty
filaments. The entire Carina Nebula [6] , cataloged as NGC 3372, spans over
300 light years [7] and lies about 8,500 light-years away in the constellation
[8]  of Carina. The nebula is composed predominantly of hydrogen [9]  gas,
which emits the pervasive red glow [10]  seen in this highly detailed featured
image [11] . The blue glow in the center is created by a trace amount of
glowing oxygen [12] . Young and massive stars located in the nebula's center
expel dust [13]  when they explode in supernovae. Eta Carinae [14] , the most
energetic star in the nebula's center, was one of the brightest stars in the
sky in the 1830s, but then faded dramatically [15] .

                      Tomorrow's picture: jupiter marble

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Site notes:
  [1] archivepix.html
  [2] image/1905/CarinaWideField_Willasch_2200.jpg
  [3] http://astro-cabinet.com/about.php
  [4] http://astro-cabinet.com/
  [5] ap100322.html
  [6] http://en.wikipedia.org/wiki/Carina_Nebula
  [7] http://chandra.harvard.edu/photo/cosmic_distance.html
  [8] http://www.ianridpath.com/startales/startales3.htm
  [9] https://en.wikipedia.org/wiki/Hydrogen
  [10] https://en.wikipedia.org/wiki/H-alpha
  [11]
http://astro-cabinet.com/
showimage.php?image=NGC3372-140mHa_140mO3_27mRGB.jpg&lang=English
  [12] https://periodic.lanl.gov/8.shtml
  [13] http://herschel.cf.ac.uk/science/infrared/dust
  [14] http://en.wikipedia.org/wiki/Eta_Carinae
  [15] http://www.aavso.org/vsots_etacar
  [16] ap190506.html
  [17] archivepix.html
  [18] lib/apsubmit2015.html
  [19] lib/aptree.html
  [20] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [21] calendar/allyears.html
  [22] /apod.rss
  [23] lib/edlinks.html
  [24] lib/about_apod.html
  [25] http://asterisk.apod.com/discuss_apod.php?date=190507
  [26] ap190508.html
  [27] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [28] http://www.phy.mtu.edu/
  [29] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [30] http://www.astro.umd.edu/
  [31] lib/about_apod.html#srapply
  [32] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [33] https://astrophysics.gsfc.nasa.gov/
  [34] https://www.nasa.gov/
  [35] https://www.nasa.gov/centers/goddard/
  [36] http://www.mtu.edu/
