Astronomy. A theory or hypothesis of the arrangement and relations of celestial objects, esp. in the solar system, by which their observed movements…
| 单词 | θ1398 |
| 释义 | the world > the universe > cosmology > science of observation > theory > [noun] > system of astronomy (22) system1621 Astronomy. A theory or hypothesis of the arrangement and relations of celestial objects, esp. in the solar system, by which their observed movements… uranology1735 The study of the stars or the heavens; astronomy. Also: a treatise or discourse on this subject; an astronomical system. Now chiefly historical. Subcategories:— specific (18) — lunar theory (2) |
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