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| Emission nebula | |
|---|---|
| H II region | |
 NGC 6357 composite image | |
| Observation data: J2000 epoch | |
| Right ascension | 17h 24m [1] |
| Declination | −34° 20′[1] |
| Distance | ~5900±450[2] ly (1800±140 pc) |
| Constellation | Scorpius[3] |
| Designations | War and Peace Nebula,[1] Lobster Nebula [4] Sharpless 11, RCW 131, Gum 66, Madokami |
NGC 6357 is a diffuse nebula near NGC 6334 in the constellation Scorpius. The nebula contains many proto-stars shielded by dark discs of gas, and young stars wrapped in expanding "cocoons" or expanding gases surrounding these small stars. It is also known as the Lobster Nebula.[4][5] This nebula was given the name War and Peace Nebula by the Midcourse Space Experiment scientists because of its appearance, which, in infrared images the bright, western part resembles a dove, while the eastern part looks like a skull.[6] A petition by anime fans to rename it as the Madokami nebula, due to resemblance with a character, was unsuccessful.[7][8]
It is located about ~5,500 light years away from Earth.[9]
- ^ a b c "NGC 6357". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2007-05-03.
- ^ Kuhn, Michael A.; Hillenbrand, Lynne A.; Sills, Alison; Feigelson, Eric D.; Getman, Konstantin V. (2018). "Kinematics in Young Star Clusters and Associations with Gaia DR2". The Astrophysical Journal. 870 (1): 32. arXiv:1807.02115. Bibcode:2019ApJ...870...32K. doi:10.3847/1538-4357/aaef8c. S2CID 119328315.
- ^ 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 978-0-933346-51-2.
- ^ a b Sample, Ian (20 February 2013). "Lobster Nebula – birthplace of stars – revealed in infrared". the Guardian.
- ^ "Lobster Nebula Seen with ESO's VISTA Telescope Space Wallpaper". Space.com. 25 February 2013.
- ^ "2MASS Picture of the Week Archive Captions".
- ^ "There Is A New Petition To Name A Nebula After "Ultimate Madoka"". crunchyroll.com.
- ^ "NGC 6357. The Lobster Nebula". astrodrudis.com.
- ^ "Winter Wonderland' Glows in Space as Nebula Is Wreathed in Wintry Colors". Space.com. 20 December 2016.
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