| 单词 | subpolar point |
| 释义 | > as lemmassubpolar point 2. Chiefly Astronomy. Situated or occurring in the region of the sky below the celestial pole. Also: situated directly beneath the celestial pole (chiefly in subpolar point). ΘΚΠ the world > the universe > celestial sphere > [adjective] > pole > subpolar subpolar1823 1823 Philos. Trans. (Royal Soc.) 113 486 Dr. Brinkley has given 44 sub-polar observations of α Lyræ with the observed refractions. 1876 C. H. Davis Narr. North Polar Exped. Ship Polaris iv. 96 The latitude of the southern entrance of Repulse Harbor, determined..by a meridian subpolar observation. 1913 W. Bowie Astron. (U.S. Coast & Geodetic Surv.) (ed. 5) 109 When a subpolar star is used slight changes will be necessary, similar to those described for the case where the observing list is prepared in terms of the declinations. 1949 School Sci. & Math. Oct. 557 P is the earth's pole, sub-polar point of the celestial sphere. 2007 J. W. Dauben in V. J. Katz et al. Math. Egypt, Mesopotamia, China, India, & Islam iii. 220 From the division of day and night at the spring equinox to the division of day and night at the autumn equinox, there is always sunlight at the subpolar point. < as lemmas |
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