- Cetus Dwarf
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Cetus Dwarf Observation data (J2000 epoch) Constellation Cetus Right ascension 00h 26m 11.0s[1] Declination -11° 02′ 40″[1] Distance 2.46 ± 0.08 Mly (755 ± 24 kpc)[2] Type dSph[1] Apparent dimensions (V) 5′.0 × 4′.3[1] Apparent magnitude (V) 14.4[1] Other designations PGC 3097691[1] See also: Galaxy, List of galaxies Cetus Dwarf is a dwarf spheroidal galaxy. It lies approximately 2.46 Million light-years from Earth. It is an isolated galaxy of the Local Group, which also contains the Milky Way. All of the most readily observable stars in the galaxy are red giants.[1]
Contents
History
The Cetus Dwarf was discovered in 1999 by Alan Whiting, George Hau and Mike Irwin and was found to be a member of the Local Group.[2][3]
Characteristics
As of 2000, no known neutral hydrogen gas has been found that is related to the Cetus dwarf galaxy.[3]
References
- ^ a b c d e f "NASA/IPAC Extragalactic Database". Results for Cetus Dwarf. http://nedwww.ipac.caltech.edu/. Retrieved 2006-12-23.
- ^ a b McConnachie, A. W.; Irwin, M. J.; Ferguson, A. M. N.; Ibata, R. A.; Lewis, G. F.; Tanvir, N. (2005). "Distances and metallicities for 17 Local Group galaxies". Monthly Notices of the Royal Astronomical Society 356 (4): 979–997. arXiv:astro-ph/0410489. Bibcode 2005MNRAS.356..979M. doi:10.1111/j.1365-2966.2004.08514.x.
- ^ a b van den Bergh, Sidney (April 2000). "Updated Information on the Local Group". The Publications of the Astronomical Society of the Pacific 112 (770): 529–536. arXiv:astro-ph/0001040. Bibcode 2000PASP..112..529V. doi:10.1086/316548.
External links
- The Cetus Dwarf on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Categories:- Dwarf spheroidal galaxies
- Local Group
- Cetus constellation
- PGC objects
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