(on the celestial sphere) a spherical triangle whose corners are respectively a celestial pole, the local zenith, and the object under observation…
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| 单词 | θ70 |
| 释义 | the world > the universe > celestial sphere > circle of celestial sphere > [noun] > astronomical triangle (2) astronomical triangle1840 (on the celestial sphere) a spherical triangle whose corners are respectively a celestial pole, the local zenith, and the object under observation… celestial triangle1956 Of or pertaining to the sky or material heavens. celestial equator = equator, n. 1 (cf. equinoctial, adj. 1); celestial globe, celestial map: one… |
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