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单词 globular cluster
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globular cluster
globular cluster n. Astronomy a roughly spherical cluster of stars, typically seen in galactic haloes and containing large numbers of old, metal-poor stars; cf. cluster n. 3c.
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globular cluster1785
globular1934
1785 W. Herschel in Philos. Trans. (Royal Soc.) 75 218 It follows, that an observer, who is inclosed in a globular cluster of stars, and not far from the center, will never be able, with the naked eye, to see to the end of it.
1868 W. Lockyer & J. N. Lockyer tr. A. Guillemin Heavens (ed. 3) 397 Another point of resemblance between the resolved globular clusters, and the nebulæ of the same form.
1961 Listener 7 Dec. 973/1 Globular clusters are of particular importance in modern astronomy, since studies of them have provided a great deal of information about the shape and structure of the Galaxy.
2002 New Scientist 9 Nov. 43/3 It seems that collisions can produce a new and exotic species of stars within the cores of globular clusters.
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