单词 | sidereal hour angle |
释义 | sidereal hour angle [sī`dir·ē·ǝl ¦au̇r ´aŋ·gǝl] ASTRONOMY The angle along the celestial equator formed between the hour circle of a celestial body and the hour circle of the vernal equinox, measuring westward from the vernal equinox through 360°. |
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