Eskimo Nebula Planetary nebula in the constellation Gemini
The Eskimo Nebula (NGC 2392 ), also known as the Clown Face Nebula , Lion Nebula ,[ 4] Caldwell 39 , is a bipolar [ 5] [ 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 (designated HD 59088[ 7] spectral type of O(H)6f.[ 8]
Notes
^ ^ 10 (≥880 pc distance) – 1) = ≤0.4 absolute magnitude
References
1 2 3 4 5 "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) 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 . ↑ Handler, G. (2 January 1996). "Three New Variable Planetary Nebula Central Stars: M 2-54, M 4-18 and NGC 2392". Information Bulletin on Variable Stars . 4283 (4283). Konkoly Observatory , Budapest : International Astronomical Union : 1. Bibcode :1996IBVS.4283....1H . ↑ 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 Scientific Papers of Sir William Herschel by J. L. E. Dreyer , Royal Society, London 1912↑ Meeus, Jan (2002). "Occultations of deep-sky objects during a total lunar eclipse". More Mathematical Astronomy Morsels (PDF) . Willmann-Bell. pp. 157– 162. ISBN 0943396743 the original (PDF) on 2025-04-05. Retrieved 2025-02-21 . ↑ Talbert, Tricia (11 August 2020). "NASA to Reexamine Nicknames for Cosmic Objects" . NASA . Retrieved 11 August 2020 .
External links
Wikimedia Commons has media related to
NGC 2392 .
NGC 2392 on WikiSky : DSS2 , SDSS , GALEX , IRAS , Hydrogen α , X-Ray , Astrophoto , Sky Map , Articles and images
APOD (2003-12-07) – NGC 2392Clown Face Nebula Lowell ObservatoryThe Structure & Evolution of the Eskimo Planetary Nebula University of Maryland Astronomy DepartmentA Kinematic Determination of the Structure of the Double Ring Planetary Nebula NGC 2392, the Eskimo Astrophysical Journal v.362, p. 226 October 1990A Cat's Eye view of the Eskimo from Saturn Maria-Teresa Garc ́ıa-D ́ıaz, Jose-Alberto L ́opez, Wofgang Steffen, Michael G. Richer and Hortensia Riesgo, 2011
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