Quick definitions from WordNet (right ascension)
▸ noun: an arc of the celestial equator eastward from the vernal equinox
▸ noun: (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")
▸ Also see right_ascension
▸ Words similar to right ascensions
▸ Usage examples for right ascensions
▸ Words that often appear near right ascensions
▸ Rhymes of right ascensions
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▸ noun: an arc of the celestial equator eastward from the vernal equinox
▸ noun: (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")
▸ Also see right_ascension
▸ Words similar to right ascensions
▸ Usage examples for right ascensions
▸ Words that often appear near right ascensions
▸ Rhymes of right ascensions
▸ Invented words related to right ascensions