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单词 local supergalaxy
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local supergalaxy
local supergalaxy n. Astronomy (now historical) = Local Supercluster n.In the source cited in quot. 1930, Shapley uses both local system and super-galaxy, but not local supergalaxy.
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1930 H. Shapley in Harvard Coll. Observatory Circular No. 350. 7 The main advantage of the super-galaxy hypothesis of the Milky Way is that it is comprehensive.]
1934 Sci. News Let. 13 Jan. 20/2 Dr. Shapley..finds that there is a local supergalaxy, a sort of universe within a universe, consisting of our own Milky Way system, the two clouds of Magellan, the Andromeda nebula and two companions, and two other external galaxies.
2007 R. J. Buta et al. De Vaucouleurs Atlas Galaxies 311/1 He [sc. Gérard de Vaucouleurs] established (1953–56) the reality of the Local Supercluster (or Local Supergalaxy).
extracted from localadj.n.
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