- the great circle lying on the celestial sphere the plane of which is perpendicular to the line joining the north and south celestial poles
Also called: equinoctial, equinoctial circle
| 单词 | celestial equator |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 celes′tial equa′tor, [Astron., Navig.]
Collins Concise English Dictionary © HarperCollins Publishers:: celestial equator n
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