          APOD: 2018 July 2 - From the Galactic Plane through Antares

                         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 July 2
                                      [2]
                   From the Galactic Plane through Antares
  Image Credit & License [3] : Rogelio Bernal Andreo [4]  (Deep Sky Colors)

Explanation: Behold one of the most photogenic regions of the night sky,
captured impressively. Featured, the band of our Milky Way Galaxy [5]  runs
diagonally along the far left, while the colorful Rho Ophiuchus [6] region
including the bright orange star Antares [7]  is visible just right of center,
and the nebula Sharpless 1 [8] (Sh2-1) appears on the far right. Visible in
front of the Milk Way band [9]  are several famous nebulas including the Eagle
Nebula [10]  (M16), the Trifid Nebula [11]  (M21), and the Lagoon Nebula [12]
(M8). Other notable nebulas include the Pipe [13]  and Blue Horsehead [14] .
In general, red emanates [15]  from nebulas glowing in the light of exited
hydrogen [16]  gas, while blue marks interstellar dust [17]  preferentially
reflecting the light [18]  of bright young stars. Thick dust appears otherwise
dark brown. Large balls of stars visible include the globular clusters M4 [19]
, M9 [20] , M19 [21] , M28 [22] , and M80 [23] , each marked [24]  on the
annotated companion image [25] . This extremely wide field -- about 50 degrees
across -- spans the constellations of Sagittarius [26]  is on the lower left,
Serpens [27]  on the upper left, Ophiuchus [28] across the middle, and
Scorpius [29]  on the right. It took over 100 hours of sky imaging, combined
with meticulous planning [30]  and digital processing, to create this image
[31] .

                    Tomorrow's picture: plane old moon [32]

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    Authors & editors: Robert Nemiroff [44] (MTU [45] ) & Jerry Bonnell [46]
                                  (UMCP [47] )
          NASA Official:  Phillip Newman Specific rights apply [48] .
              NASA Web Privacy Policy and Important Notices [49]
              A service of: ASD [50]  at NASA [51]  / GSFC [52]
                           & Michigan Tech. U. [53]
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Site notes:
  [1] archivepix.html
  [2] image/1807/MwPastAntares_Andreo_2048.jpg
  [3]
http://www.deepskycolors.com/archive/2010/05/27/
creativecommons-Required-Attribution-l.html
  [4] https://www.facebook.com/DeepSkyColors
  [5] https://solarsystem.nasa.gov/resources/285/the-milky-way-galaxy/
  [6] ap160705.html
  [7] ap120417.html
  [8] https://en.wikipedia.org/wiki/Sh2-1
  [9] ap110710.html
  [10] ap140607.html
  [11] ap171020.html
  [12] ap160909.html
  [13] ap121123.html
  [14] ap130402.html
  [15]
http://www.lcas-astronomy.org/articles/
display.php?filename=why_are_emission_nebulae_colored_red&category=observing
  [16] http://periodic.lanl.gov/1.shtml
  [17] ap030706.html
  [18] http://astronomy.swin.edu.au/cosmos/R/Reflection+Nebula
  [19] ap000523.html
  [20] ap120323.html
  [21] ap000719.html
  [22] https://en.wikipedia.org/wiki/Messier_28
  [23] ap990707.html
  [24] https://en.wikipedia.org/wiki/List_of_Messier_objects
  [25] image/1807/MwPastAntares_Andreo_2048_annotated.jpg
  [26] https://en.wikipedia.org/wiki/Sagittarius_(constellation)
  [27] https://en.wikipedia.org/wiki/Serpens
  [28] https://en.wikipedia.org/wiki/Ophiuchus
  [29] https://en.wikipedia.org/wiki/Scorpius
  [30] https://i.pinimg.com/736x/4b/0e/81/4b0e81419b2f75dabbb41323f931ef05.jpg
  [31]
https://www.facebook.com/DeepSkyColors/photos/
a.511542708913047.1073741828.511507152249936/1798117236922248/?type=3&theater
  [32] ap180703.html
  [33] ap180701.html
  [34] archivepix.html
  [35] lib/apsubmit2015.html
  [36] lib/aptree.html
  [37] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search
  [38] calendar/allyears.html
  [39] /apod.rss
  [40] lib/edlinks.html
  [41] lib/about_apod.html
  [42] http://asterisk.apod.com/discuss_apod.php?date=180702
  [43] ap180703.html
  [44] http://www.phy.mtu.edu/faculty/Nemiroff.html
  [45] http://www.phy.mtu.edu/
  [46] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
  [47] http://www.astro.umd.edu/
  [48] lib/about_apod.html#srapply
  [49] https://www.nasa.gov/about/highlights/HP_Privacy.html
  [50] https://astrophysics.gsfc.nasa.gov/
  [51] https://www.nasa.gov/
  [52] https://www.nasa.gov/centers/goddard/
  [53] http://www.mtu.edu/
