Sculptor Dwarf Galaxy (also called the Sculptor Dwarf Elliptical Galaxy or the Sculptor Dwarf Spheroidal Galaxy) is a dwarf spheroidal galaxy that is a satellite of the Milky Way. The galaxy lies within the constellation Sculptor. It was discovered in 1937 by Harlow Shapley using the 24-inch Bruce refractor at Boyden Observatory. [4 ] The galaxy is located about 290,000 [5 ] light-years away from the Solar System. The Sculptor Dwarf contains only 4 percent of the carbon and other heavy elements in our own galaxy, the Milky Way, making it similar to primitive galaxies seen at the edge of the universe. [6 ]
Metallicity [ edit ]
In 1999, Majewski et al. determined that the
metallicity of Sculptor dwarf appears to be broken up into two distinct groups, one with [Fe/H] = -2.3 and the other with [Fe/H] = -1.5. Similar to many of the other Local Group galaxies, the older metal-poor segment appears more extended than the younger metal-rich segment. [7 ]
References [ edit ]
^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for PGC 3589 . Retrieved . 2006-12-03
^ I. D. Karachentsev, V. E. Karachentseva, W. K. Hutchmeier, D. I. Makarov (2004). "A Catalog of Neighboring Galaxies". Astronomical Journal (abstract) 128 (4): 2031–2068. Bibcode: 2004AJ....127.2031K. doi: 10.1086/382905.
^ Karachentsev, I. D.; Kashibadze, O. G. (2006). "Masses of the local group and of the M81 group estimated from distortions in the local velocity field". Astrophysics 49 (1): 3–18. Bibcode: 2006Ap.....49....3K. doi: 10.1007/s10511-006-0002-6.
^ Shapley, H., (1938) . Harvard Bull 908.
^ Shapley H (1938). "Two Stellar Systems of a New Kind". Nature 142 (3598): 715–6. Bibcode: 1938Natur.142..715S. doi: 10.1038/142715b0.
^ Astronomers Detect Dust Around a Primitive Star, Shedding New Light on Universe’s Origins Newswise, Retrieved on January 19, 2008.
^ 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 [ edit ]
Coordinates: 01 h 00 m 09.3 s, −33° 42′ 33″