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单词 galactic circle
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galactic circle
galactic circle n. the central line or zone of the Milky Way across the sky; spec. = galactic equator n.
ΚΠ
1847 J. F. W. Herschel Results Astron. Observ. iv. 379 The poles of the great circle marking on a celestial globe the medial line of the Milky Way, which may be called the Galactic circle, were found, and their places ascertained.
1930 J. H. Jeans Universe around Us (ed. 2) i. 23 The Milky Way..is found to be only part of a full circle of light—the galactic circle—which stretches completely round the earth and divides the sky into two equal halves, forming a sort of celestial ‘equator’.
1992 Amer. Jrnl. Archaeol. 96 273/1 Several ancient commentators..held that the galactic circle originated from the milk of a divine mother.
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