Astronomy. A circle on the celestial sphere corresponding to the geographic Arctic Circle, at a declination currently of 66° 33′ 44″ N (this being…
| 单词 | θ67 |
| 释义 | the world > the universe > celestial sphere > circle of celestial sphere > [noun] > lesser circle > polar circle > arctic circle (1) Arctic Circlec1550 Astronomy. A circle on the celestial sphere corresponding to the geographic Arctic Circle, at a declination currently of 66° 33′ 44″ N (this being… |
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