Subj : Daily APOD Report To : All From : Ben Ritchey Date : Tue Aug 21 2018 10:00:41 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 21 [2] Glowing Elements in the Soul Nebula Image Credit & Copyright: Jesús M.Vargas & Maritxu Poyal [3] Explanation: Stars are forming in the Soul of the Queen of Aethopia. More specifically, a large star forming region called the Soul Nebula [4] (IC 1898) can be found in the direction of the constellation Cassiopeia [5] , who Greek mythology credits as the vain wife [6] of a King who long ago ruled lands [7] surrounding the upper Nile [8] river. The Soul Nebula [9] houses several open clusters of stars [10] , a large radio source known as W5 [11] , and huge evacuated bubbles formed by the winds of young massive stars [12] . Located about 6,500 light years away, the Soul Nebula [13] spans about 100 light years [14] and is usually imaged next to [15] its celestial neighbor the Heart Nebula [16] (IC 1805). The featured image [17] is a composite of three exposures in different colors: red as emitted by hydrogen [18] gas, yellow as emitted by sulfur [19] , and blue as emitted by oxygen [20] . News: New APOD mirror in French [21] Tomorrow's picture: galaxy center ------------------------------------------------------------------------------- < [22] | Archive [23] | Submissions [24] | Index [25] | Search [26] | Calendar [27] | RSS [28] | Education [29] | About APOD [30] | Discuss [31] | > [32] ------------------------------------------------------------------------------- Authors & editors: Robert Nemiroff [33] (MTU [34] ) & Jerry Bonnell [35] (UMCP [36] ) NASA Official: Phillip Newman Specific rights apply [37] . NASA Web Privacy Policy and Important Notices [38] A service of: ASD [39] at NASA [40] / GSFC [41] & Michigan Tech. U. [42] ---------- Site notes: [1] archivepix.html [2] image/1808/SoulNebula_Vargas_3106.jpg [3] http://www.sky-astrophotography.com/ [4] http://en.wikipedia.org/wiki/Soul_Nebula [5] http://en.wikipedia.org/wiki/Cassiopeia_%28constellation%29 [6] http://en.wikipedia.org/wiki/Cassiopeia_%28mythology%29 [7] http://en.wikipedia.org/wiki/Ethiopia_%28mythology%29 [8] http://en.wikipedia.org/wiki/Nile_river_delta [9] http://www.atlasoftheuniverse.com/nebulae/ic1805.html [10] http://asterisk.apod.com/viewtopic.php?f=24&t=18009 [11] ap111120.html [12] https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve [13] ap171004.html [14] https://spaceplace.nasa.gov/light-year/en/ [15] ap100601.html [16] ap080914.html [17] http://www.sky-astrophotography.com/ index.php?nodo=3titulo=galeria&level=picture&id=1166 [18] https://www.youtube.com/watch?v=nLuOM9aOWvk [19] https://en.wikipedia.org/wiki/Sulfur [20] https://periodic.lanl.gov/8.shtml [21] https://www.apod.tv/ [22] ap180820.html [23] archivepix.html [24] lib/apsubmit2015.html [25] lib/aptree.html [26] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search [27] calendar/allyears.html [28] /apod.rss [29] lib/edlinks.html [30] lib/about_apod.html [31] http://asterisk.apod.com/discuss_apod.php?date=180821 [32] ap180822.html [33] http://www.phy.mtu.edu/faculty/Nemiroff.html [34] http://www.phy.mtu.edu/ [35] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html [36] http://www.astro.umd.edu/ [37] lib/about_apod.html#srapply [38] https://www.nasa.gov/about/highlights/HP_Privacy.html [39] https://astrophysics.gsfc.nasa.gov/ [40] https://www.nasa.gov/ [41] https://www.nasa.gov/centers/goddard/ [42] http://www.mtu.edu/ --- Mystic BBS v1.12 A39 (Windows/32) * Origin: FIDONet - The Positronium Repository (1:393/68) .