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 August 10
                                      [2]
                            Spiral Galaxy NGC 6744
                Image Credit & Copyright [3] : Martin Pugh [4]

Explanation: Beautiful spiral galaxy NGC 6744 [5] is nearly 175,000
light-years across, larger than our own Milky Way [6] . It lies some 30
million light-years distant in the southern constellation Pavo and appears as
only a faint, extended object in small telescopes. We see the disk of the
nearby island universe tilted towards our line of sight. This remarkably
detailed galaxy portrait [7]  covers an area about the angular size of the
full moon [8] . In it, the giant galaxy's elongated yellowish core is
dominated by the light from old, cool stars. Beyond the core, grand spiral
arms are filled with young blue star clusters and speckled with pinkish star
forming regions. An extended arm sweeps past a smaller satellite galaxy at the
upper left. NGC 6744's galactic companion is reminiscent of the Milky Way's
satellite galaxy the Large Magellanic Cloud [9] .

This Weekend: Meteor Showers Expected [10] , Moon bites Sun [11] (again [12] )
                                  [12]  [12]
                     Tomorrow's picture: shadows in space

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Site notes:
  [1] archivepix.html
  [2] image/1808/NGC6744_HaLRGB_MP.jpg
  [3] lib/about_apod.html#srapply
  [4] https://www.martinpughastrophotography.space/...
  [5] http://www.nasa.gov/mission_pages/galex/ big-brother-milky-way.html
  [6] ap080606.html
  [7] https://www.martinpughastrophotography.space/...
  [8] ap130801.html
  [9] ap150827.html
  [10] ap180808.html
  [11] http://earthsky.org/tonight/ partial-solar-eclipse-on-august-11
  [12] ap180714.html
  [13] ap180809.html
  [14] archivepix.html
  [15] lib/apsubmit2015.html
  [16] lib/aptree.html
  [17] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apo...
  [18] calendar/allyears.html
  [19] /apod.rss
  [20] lib/edlinks.html
  [21] lib/about_apod.html
  [22] http://asterisk.apod.com/discuss_apod.php?dat...
  [23] ap180811.html
  [24] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [25] http://www.phy.mtu.edu/
  [26] https://antwrp.gsfc.nasa.gov/htmltest/jbonnel...
  [27] http://www.astro.umd.edu/
  [28] lib/about_apod.html#srapply
  [29] https://www.nasa.gov/about/highlights/HP_Priv...
  [30] https://astrophysics.gsfc.nasa.gov/
  [31] https://www.nasa.gov/
  [32] https://www.nasa.gov/centers/goddard/
  [33] http://www.mtu.edu/

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