Subj : Daily APOD Report To : All From : Ben Ritchey Date : Tue May 14 2019 12:08:34 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. 2019 May 14 [2] Young Star Cluster Trumpler 14 from Hubble Image Credit: NASA [3] , ESA [4] , and J. Maíz Apellániz [5] (IoAoA Spain [6] ); Acknowledgment: N. Smith [7] (U. Arizona [8] ) Explanation: Why does star cluster Trumpler 14 have so many bright stars? Because it is so young. Many cluster stars have formed only in the past 5 million years and are so hot they emit detectable X-rays [9] . In older star clusters, most stars [10] this young have already died -- typically exploding in a supernova [11] -- leaving behind stars that are fainter and redder. Trumpler 14 [12] spans about 40 light years and lies about 9,000 light years [13] away on the edge of the famous Carina Nebula [14] . A discerning eye [15] can spot two unusual objects in this detailed 2006 image [16] of Trumpler 14 by the Hubble Space Telescope [17] . First, a dark cloud [18] just left of center may be a planetary system trying to form before being destroyed by the energetic winds [19] of Trumpler 14 [20] 's massive stars. Second is the arc [21] at the bottom left, which one hypothesis holds is the supersonic shock wave [22] of a fast star ejected 100,000 years ago from a completely different star cluster [23] . Tomorrow's picture: pivotal drab galaxy ------------------------------------------------------------------------------- < [24] | Archive [25] | Submissions [26] | Index [27] | Search [28] | Calendar [29] | RSS [30] | Education [31] | About APOD [32] | Discuss [33] | > [34] ------------------------------------------------------------------------------- Authors & editors: Robert Nemiroff [35] (MTU [36] ) & Jerry Bonnell [37] (UMCP [38] ) NASA Official: Phillip Newman Specific rights apply [39] . NASA Web Privacy Policy and Important Notices [40] A service of: ASD [41] at NASA [42] / GSFC [43] & Michigan Tech. U. [44] ---------- Site notes: [1] arcfhivepix.html [2] image/1905/Trumpler14_Hubble_3906.jpg [3] https://www.nasa.gov/ [4] https://www.spacetelescope.org/ [5] http://heritage.stsci.edu/2000/01/bio/bio_primary.html [6] https://www.iaa.csic.es/ [7] https://www.as.arizona.edu/people/faculty/nathan-smith [8] https://www.as.arizona.edu/ [9] ap050902.html [10] https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve [11] https://www.youtube.com/watch?v=hJPVuSNFxlY [12] https://en.wikipedia.org/wiki/Trumpler_14 [13] https://starchild.gsfc.nasa.gov/docs/StarChild/questions/question19.html [14] ap170815.html [15] https://previews.123rf.com/images/sinnawin/sinnawin1210/sinnawin121000013/ 15822340-humorous-conceptual-image-of-a-nearsighted-cat-with-myopia-peering-at- a-little-mouse-through-a-magni.jpg [16] http://hubblesite.org/image/3693/news [17] https://www.nasa.gov/mission_pages/hubble/main/index.html [18] ap171008.html [19] ap000318.html [20] https://www.flickr.com/photos/geckzilla/14922981167 [21] http://adsabs.harvard.edu/abs/2013ApJ...769..139N [22] ap170408.html [23] https://en.wikipedia.org/wiki/Trumpler_16 [24] ap190513.html [25] archivepix.html [26] lib/apsubmit2015.html [27] lib/aptree.html [28] https://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search [29] calendar/allyears.html [30] /apod.rss [31] lib/edlinks.html [32] lib/about_apod.html [33] http://asterisk.apod.com/discuss_apod.php?date=190514 [34] ap190515.html [35] http://www.phy.mtu.edu/faculty/Nemiroff.html [36] http://www.phy.mtu.edu/ [37] https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html [38] http://www.astro.umd.edu/ [39] lib/about_apod.html#srapply [40] https://www.nasa.gov/about/highlights/HP_Privacy.html [41] https://astrophysics.gsfc.nasa.gov/ [42] https://www.nasa.gov/ [43] https://www.nasa.gov/centers/goddard/ [44] http://www.mtu.edu/ --- Mystic BBS v1.12 A43 (Windows/32) * Origin: FIDONet - The Positronium Repository (1:393/68) .