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NGC 6357
NGC 6357 Emission nebula H II region A Hubble Space Telescope (HST) image of Pismis 24-1, the "core" of NGC 6357 Credit: HST/NASA/ESA Observation data: J2000 epoch Right ascension 17h 24m Declination -34° 20' Distance ~ 8000 ly Constellation Scorpius Designations War and Peace Nebula, Lobster Nebula Sharpless 11, RCW 131, Gum 66 See also: Lists of nebulae NGC 6357 is a diffuse nebula near NGC 6334 in the constellation Scorpius. The nebula contains many proto-stars shielded by dark disks of gas, and young stars wrapped in expanding "cocoons" or expanding gases surrounding these small stars. It is also known as the Lobster NebulaThis nebula was also given the name War and Peace Nebula by the Midcourse Space Experiment scientists because of its appearance. They said that in infrared images the bright, western part resembles a dove, while the eastern part looks like a skull. In the same vein, a petition was created to name it "Madokami Nebula" after a character in the anime Puella Magi Madoka Magica by fans because of the nebula's strong resemblance and meaning. ^ a b c "SIMBAD Astronomical Database". Results for NGC 6357. Retrieved 2007-05-03.  ^ Robert Nemiroff; Jerry Bonnell (21 November 2010). "A Massive Star in NGC 6357". Astronomy Picture of the Day.  ^ R. W. Sinnott, ed. (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 0-933-34651-4.  ^ a b http://www.theguardian.com/science/2013/feb/20/lobster-nebula-birthplace-stars-infrared ^ http://www.space.com/19938-lobster-nebula-seen-with-esos-vista-telescope-space-wallpaper.html ^ "2MASS Picture of the Week Archive Captions".  ^ Andrew Jagua (2013). "Petition - International Astronomical Union: Change the official name of nebula NGC 6357 to the 'Madokami nebula'". Change.org.  Missing or empty |url= (help); |access-date= requires |url= (help)
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