Other Definitions
right ascension (enc)
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Right Ascension| Noun | 1. | right ascension - (astronomy) the angular distance eastward along the celestial equator from the vernal equinox to the intersection of the hour circle that passes through the body; expressed in hours and minutes and second; used with declination to specify positions on the celestial sphere; "one hour of right ascension equals fifteen degrees"astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole angular distance - the angular separation between two objects as perceived by an observer; "he recorded angular distances between the stars" | | | 2. | right ascension - an arc of the celestial equator eastward from the vernal equinox | |
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