Subj : Daily APOD Report To : All From : Ben Ritchey Date : Wed Apr 17 2019 21:22:11 APOD: 2019 April 16 - In the Vicinity of the Cone Nebula 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 16 [2] In the Vicinity of the Cone Nebula Image Credit: Chilescope [3] ; Processing & Copyright: Utkarsh Mishra [4] Explanation: Strange shapes and textures can be found in neighborhood of the Cone Nebula [5] . The unusual shapes [6] originate from fine interstellar dust [7] reacting in complex ways with the energetic light and hot gas being expelled by the young stars. The brightest star on the right of the featured picture [8] is S Mon [9] , while the region just below it has been nicknamed the Fox Fur Nebula [10] for its color and structure. The blue glow [11] directly surrounding S Mon [12] results from reflection [13] , where neighboring dust reflects light from the bright star. The red glow [14] that encompasses the whole region results not only from dust reflection but also emission [15] from hydrogen [16] gas ionized [17] by starlight. S Mon [18] is part of a young open cluster of stars [19] named NGC 2264 [20] , located about 2500 light years [21] away toward the constellation [22] of the Unicorn ( Monoceros [23] ). Even though it points right at S Mon, details of the origin of the mysterious geometric Cone Nebula [24] , visible on the far left, remain a mystery [25] . Tomorrow's picture: open space [26] ------------------------------------------------------------------------------- < [27] | Archive [28] | Submissions [29] | Index [30] | Search [31] | Calendar [32] | RSS [33] | Education [34] | About APOD [35] | Discuss [36] | > [37] ------------------------------------------------------------------------------- Authors & editors: Robert Nemiroff [38] (MTU [39] ) & Jerry Bonnell [40] (UMCP [41] ) NASA Official: Phillip Newman Specific rights apply [42] . NASA Web Privacy Policy and Important Notices [43] A service of: ASD [44] at NASA [45] / GSFC [46] & Michigan Tech. U. [47] ---------- Site notes: [1] archivepix.html [2] image/1904/ConeFoxfur_Mishra_1687.jpg [3] http://www.chilescope.com/about/chilescope/ [4] https://www.flickr.com/photos/163350986@N06/ [5] ap170315.html [6] ap081228.html [7] ap990509.html [8] https://www.flickr.com/photos/163350986@N06/33138873508/in/dateposted/ [9] https://en.wikipedia.org/wiki/S_Monocerotis [10] ap080422.html [11] http://www.youtube.com/watch?v=KZVvIWI2psU [12] http://stars.astro.illinois.edu/sow/15mon.html [13] reflection_nebulae.html [14] ap111106.html [15] http://en.wikipedia.org/wiki/Emission_nebula [16] ap010113.html [17] https://en.wikipedia.org/wiki/Ionization [18] http://en.wikipedia.org/wiki/S_Monocerotis [19] http://asterisk.apod.com/viewtopic.php?f=24&t=18009 [20] http://adsabs.harvard.edu/abs/2002AAS...200.7002L [21] https://spaceplace.nasa.gov/light-year/en/ [22] http://www.astro.wisc.edu/~dolan/constellations/extra/constellations.html [23] http://www.hawastsoc.org/deepsky/mon/index.html [24] ap020107.html [25] http://www.grassrootsinternetstrategy.com.au/wp-content/uploads/2011/06/ cute-dog.jpg [26] ap190417.html [27] ap190415.html [28] archivepix.html [29] lib/apsubmit2015.html [30] lib/aptree.html [31] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search [32] calendar/allyears.html [33] /apod.rss [34] lib/edlinks.html [35] lib/about_apod.html [36] http://asterisk.apod.com/discuss_apod.php?date=190416 [37] ap190417.html [38] http://www.phy.mtu.edu/faculty/Nemiroff.html [39] http://www.phy.mtu.edu/ [40] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html [41] http://www.astro.umd.edu/ [42] lib/about_apod.html#srapply [43] https://www.nasa.gov/about/highlights/HP_Privacy.html [44] https://astrophysics.gsfc.nasa.gov/ [45] https://www.nasa.gov/ [46] https://www.nasa.gov/centers/goddard/ [47] http://www.mtu.edu/ --- Mystic BBS v1.12 A43 (Windows/32) * Origin: FIDONet - The Positronium Repository (1:393/68) .