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Sculptor Dwarf Galaxy
The 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.〔Shapley, H., (1938) ''(Harvard Bull )''. 908.〕 The galaxy is located about 290,000 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.〔(Astronomers Detect Dust Around a Primitive Star, Shedding New Light on Universe’s Origins ) Newswise, Retrieved on January 19, 2008.〕
==Metallicity==
The metallicity of Sculptor dwarf appears to be broken up into two distinct groups, one with () = -2.3 and the other with () = -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.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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