Subj : Daily APOD Report To : All From : Ben Ritchey Date : Fri Sep 28 2018 10:35:56 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 September 28 [2] The Light, the Dark, and the Dusty Image Credit & Copyright [3] : Tasos Liampos [4] Explanation: This colorful skyscape spans about two full moons across nebula rich starfields along the plane of our Milky Way Galaxy in the royal northern constellation Cepheus [5] . Near the edge of the region's massive molecular cloud some 2,400 light-years away, bright reddish emission region Sharpless [6] (Sh) 155 is below and right of center, also known as the Cave Nebula [7] . About 10 light-years across the cosmic cave's bright walls of gas are ionized by ultraviolet light from the hot young stars around it. Dusty blue reflection nebulae, like vdB [8] 155 at upper left, and dense obscuring clouds of dust [9] also abound on the interstellar canvas. Astronomical explorations [10] have revealed other dramatic signs of star formation, including the bright red fleck of Herbig-Haro [11] (HH) 168. Near top center in the frame, the Herbig-Haro object emission is generated by energetic jets from a newborn star. [12] Tomorrow's picture: 55 nights with Saturn ------------------------------------------------------------------------------- < [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/1809/Sh2-155CaveNebula_Liampos.jpg [3] lib/about_apod.html#srapply [4] mailto: lgtasos [at] otenet [dot] gr [5] http://earthsky.org/brightest-stars/ star-errai-future-north-star [6] http://adsabs.harvard.edu/abs/1953ApJ...118..362S [7] ap170323.html [8] http://adsabs.harvard.edu/abs/1966AJ.....71..990V [9] http://www.atlasoftheuniverse.com/darknebs.html [10] https://arxiv.org/abs/0909.5326 [11] http://en.wikipedia.org/wiki/ Herbig%E2%80%93Haro_object [12] http://heritage.stsci.edu/1999/35/index.html [13] ap180927.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=180928 [23] ap180929.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) .