Astronomy. = retrogradation, n. 1.
| 单词 | θ591 |
| 释义 | the world > the universe > planet > primary planet > moon > lunar orbit > [noun] > node > backward movement of (3) regression1640 Astronomy. = retrogradation, n. 1. retrogradation1657 Astronomy. The retrograde motion on the ecliptic of the lunar or (less commonly) planetary nodes. regress1715 Astronomy and Astrology. Retrograde motion. Obsolete. |
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