Subj : Daily APOD Report To : All From : Ben Ritchey Date : Thu Aug 30 2018 11:43:52 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 30 [2] The NGC 6914 Complex Image Credit & Copyright [3] : Ivan Eder [4] Explanation: A study in contrasts, this colorful skyscape [5] features stars, dust, and glowing gas [6] in the vicinity of NGC 6914. The complex of reflection nebulae [7] lies some 6,000 light-years away, toward the high-flying northern constellation Cygnus and the plane [8] of our Milky Way Galaxy. Obscuring interstellar dust clouds appear in silhouette while reddish hydrogen emission nebulae [9] , along with the dusty blue reflection nebulae [10] , fill the cosmic canvas. Ultraviolet radiation from the massive, hot, young stars of the extensive Cygnus OB2 [11] association ionize the region's atomic hydrogen gas [12] , producing the characteristic red glow as protons and electrons recombine. Embedded Cygnus OB2 stars also provide the blue starlight strongly reflected by the dust clouds. The nearly 1 degree wide telescopic field of view spans about 100 light-years at the estimated distance of NGC 6914. Tomorrow's picture: pixels in space ------------------------------------------------------------------------------- < [13] | Archive [14] | Submissions [15] | Index [16] | Search [17] | Calendar [18] | RSS [19] | Education [20] | About APOD [21] | Discuss [22] | > [23] ------------------------------------------------------------------------------- Authors & editors: Robert Nemiroff [24] (MTU [25] ) & Jerry Bonnell [26] (UMCP [27] ) NASA Official: Phillip Newman Specific rights apply [28] . NASA Web Privacy Policy and Important Notices [29] A service of: ASD [30] at NASA [31] / GSFC [32] & Michigan Tech. U. [33] ---------- Site notes: [1] archivepix.html [2] image/1808/NGC6914_Eder.jpg [3] lib/about_apod.html#srapply [4] http://www.astroeder.com/ [5] http://www.astroeder.com/ngc6914-ccd-eder-en.html [6] https://science.nasa.gov/astrophysics/focus-areas/ how-do-stars-form-and-evolve [7] http://pixinsight.com/gallery/NGC6914-CAHA/index.html [8] ap070920.html [9] http://astronomy.swin.edu.au/cosmos/E/Emission+Nebula [10] http://astronomy.swin.edu.au/cosmos/E/Reflection+Nebula [11] http://arxiv.org/abs/1003.2463 [12] ap051223.html [13] ap180829.html [14] archivepix.html [15] lib/apsubmit2015.html [16] lib/aptree.html [17] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search [18] calendar/allyears.html [19] /apod.rss [20] lib/edlinks.html [21] lib/about_apod.html [22] http://asterisk.apod.com/discuss_apod.php?date=180830 [23] ap180831.html [24] http://www.phy.mtu.edu/faculty/Nemiroff.html [25] http://www.phy.mtu.edu/ [26] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html [27] http://www.astro.umd.edu/ [28] lib/about_apod.html#srapply [29] https://www.nasa.gov/about/highlights/HP_Privacy.html [30] https://astrophysics.gsfc.nasa.gov/ [31] https://www.nasa.gov/ [32] https://www.nasa.gov/centers/goddard/ [33] http://www.mtu.edu/ --- Mystic BBS v1.12 A39 (Windows/32) * Origin: FIDONet - The Positronium Repository (1:393/68) .