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 April 29
                                      [2]
                         N11: Star Clouds of the LMC
      Image Credit: NASA [3] , ESA [4] ; Acknowledgement: Josh Lake [5]

Explanation: Massive stars, abrasive winds, mountains of dust [6] , and
energetic light [7] sculpt one of the largest and most picturesque regions of
star formation [8]  in the Local Group of Galaxies [9] . Known as N11 [10] ,
the region is visible on the upper right [11]  of many images of its home
galaxy, the Milky Way [12]  neighbor known as the Large Magellanic Clouds [13]
 (LMC). The featured image [14]  was taken for scientific purposes by the
Hubble Space Telescope and reprocessed for artistry [15]  by an amateur to win
a Hubble's Hidden Treasures [16]  competition. Although the section imaged
above is known as NGC 1763 [17] , the entire N11 emission nebula is second in
LMC size only to the Tarantula Nebula [18] . Compact globules of dark dust
[19] housing emerging young stars are also visible around the image. A new
study [20]  of variable stars [21]  in the LMC with Hubble [22]  has helped to
recalibrate the distance scale [23] of the observable universe [24] , but
resulted in a slightly different scale [25] than found using [26] the
pervasive cosmic microwave background [27] .

  Astrophysicists: Browse 1,900+ codes in the Astrophysics Source Code Library
                                    [28]
                    Tomorrow's picture: a meteoric galaxy

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    Authors & editors: Robert Nemiroff [40] (MTU [41] ) & Jerry Bonnell [42]
                                  (UMCP [43] )
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Site notes:
  [1] archivepix.html
  [2] image/1904/N11_Hubble_1989.jpg
  [3] https://www.nasa.gov/
  [4] https://www.esa.int/
  [5] https://www.flickr.com/people/79510497@N07/
  [6] ap170702.html
  [7] https://science.nasa.gov/ems/10_ultravioletwa...
  [8] stellar_nurseries.html
  [9] http://en.wikipedia.org/wiki/Local_Group
  [10] https://www.spacetelescope.org/news/heic1301/
  [11] http://www.youtube.com/watch?v=Q59QwM_YRDM
  [12] ap000130.html
  [13] ap150827.html
  [14]
http://www.spacetelescope.org/projects/fits_l...
josh_lake_ngc_1763/
  [15]
https://media13.gimplearn.net/download/file.p...
  [16] http://www.spacetelescope.org/projects/hidden...
  [17] https://en.wikipedia.org/wiki/NGC_1763
  [18] ap180520.html
  [19] ap120612.html
  [20] http://adsabs.harvard.edu/abs/2019arXiv190307...
  [21] ap160606.html
  [22] https://www.nasa.gov/mission_pages/hubble/mai...
  [23] https://en.wikipedia.org/wiki/Hubble%27s_law
  [24] ap180508.html
  [25]
https://en.wikipedia.org/wiki/
Hubble%27s_law#Observed_values_of_the_Hubble_constant
  [26] https://www.spacetelescope.org/news/heic1908/
  [27] ap180722.html
  [28] http://ascl.net/
  [29] ap190428.html
  [30] archivepix.html
  [31] lib/apsubmit2015.html
  [32] lib/aptree.html
  [33] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [34] calendar/allyears.html
  [35] /apod.rss
  [36] lib/edlinks.html
  [37] lib/about_apod.html
  [38] http://asterisk.apod.com/discuss_apod.php?dat...
  [39] ap190430.html
  [40] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [41] http://www.phy.mtu.edu/
  [42] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [43] http://www.astro.umd.edu/
  [44] lib/about_apod.html#srapply
  [45] https://www.nasa.gov/about/highlights/HP_Priv...
  [46] https://astrophysics.gsfc.nasa.gov/
  [47] https://www.nasa.gov/
  [48] https://www.nasa.gov/centers/goddard/
  [49] http://www.mtu.edu/

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