NGC 2392,[1] Caldwell 39, PN G197.8+17.3 Central Star: HIP 36369, HD 59088, TYC 1372-1287-1
See also: Lists of nebulae
The Eskimo Nebula (NGC 2392), also known as the Clown-faced Nebula, Lion Nebula,[4] or Caldwell 39, is a bipolar[5] double-shell[6] planetary nebula (PN). It was discovered by astronomer William Herschel in 1787. The formation resembles a person's head surrounded by a parka hood. It is surrounded by gas that composed the outer layers of a Sun-like star. The visible inner filaments are ejected by a strong wind of particles from the central star. The outer disk contains unusual, light-year-long filaments.
NGC 2392 lies about 6500 light-years away, and is visible with a small telescope in the constellation of Gemini.
At the center of NGC 2392, there is an O-type star with a spectral type of O(H)6f.[7]
^ abcd"NGC 2392". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2006-12-22.
^Gaia Collaboration et al. (2018b): Summary of the contents and survey properties
^O'Dell, C. R.; Balick, B.; Hajian, A. R.; Henney, W. J.; et al. (2002). "Knots in Nearby Planetary Nebulae". The Astronomical Journal. 123 (6): 3329–3347. Bibcode:2002AJ....123.3329O. doi:10.1086/340726.
^Deep-Sky Companions: The Caldwell Objects, 2nd Edition, Stephen James O'Meara, 2016, p.181
^O'dell, C. R.; Balick, B.; Hajian, A. R.; Henney, W. J.; et al. (2003). "Knots in Planetary Nebulae". In S. J. Arthur & W. J. Henney (ed.). Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias). Winds, Bubbles, and Explosions: a conference to honor John Dyson, Pátzcuaro, Michoacán, México, September 9–13, 2002. Vol. 15. pp. 29–33. Bibcode:2003RMxAC..15...29O. Archived from the original on 2018-05-01. Retrieved 2007-01-04.
^Guerrero, M. A.; Chu, Y.-H.; Gruendl, R. A.; Meixner, M. (2005). "XMM-Newton detection of hot gas in the Eskimo Nebula: Shocked stellar wind or collimated outflows?". Astronomy and Astrophysics. 430 (3): L69–L72. arXiv:astro-ph/0412540. Bibcode:2005A&A...430L..69G. doi:10.1051/0004-6361:200400131. S2CID 6518963.
^González-Santamaría, I.; Manteiga, M.; Manchado, A.; Ulla, A.; Dafonte, C.; López Varela, P. (2021). "Planetary nebulae in Gaia EDR3: Central star identification, properties, and binarity". Astronomy & Astrophysics. 656: A51. arXiv:2109.12114. Bibcode:2021A&A...656A..51G. doi:10.1051/0004-6361/202141916. S2CID 237940344.
The EskimoNebula (NGC 2392), also known as the Clown-faced Nebula, Lion Nebula, or Caldwell 39, is a bipolar double-shell planetary nebula (PN). It was...
to rather irregular tail-less objects. Similarly to the Helix Nebula and the EskimoNebula, the heads of the knots have bright cusps which are local photoionization...
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the individual articles, where available, for each nebula. Please see the linked article on the nebula for references. Many distances are estimates (denoted...
planetary nebula in the constellation of Eridanus, discovered by William Herschel on February 1, 1785. It is very similar to the EskimoNebula in both color...
the Helix Nebula (NGC 7293), the Ring Nebula (NGC 6720), the Dumbbell Nebula (NGC 6853), the EskimoNebula (NGC 2392), and the Retina Nebula (IC 4406)...
of the star Pollux and a bit over two degrees east-northeast of the EskimoNebula. Through a small telescope at low magnification it appears as a uniform...
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"The Eskimo Invasion" was nominated for the 1967 Hugo Award for Best Novelette and the 1967 Nebula Award for Best Novelette; the novel The Eskimo Invasion...
cosmic objects and systems including references to NGC 2392 as "the EskimoNebula" and NGC 4567 and NGC 4568 as the "Siamese Twins Galaxy". 10 August...
regions." The decision established that planetary nebula NGC 2392, historically known as the "EskimoNebula", among other astronomical objects, should be...
The Nebula Award for Best Novelette is given each year by the Science Fiction and Fantasy Writers Association (SFWA) to a science fiction or fantasy novelette...
novel. From 1982, Guthridge coached school pupils in the Siberian Yupik Eskimo village of Gambell, Alaska, on the remote St. Lawrence Island in the Bering...
practice. This NOVA docudrama depicts the pioneers of medicine. 7 7 "The Crab Nebula" April 14, 1974 (1974-04-14) 0107 In 1054 AD, the Chinese recorded the explosion...
early Hollow Earth proponents. According to Marshall Gardner, both the Eskimo and Mongolian peoples had come from the interior of the Earth through an...
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