 right_ascension |
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| 1. | [ 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 minutes and second | |
| Synonyms: | celestial_longitude RA | |
| Examples: | "one hour of right ascension equals fifteen degrees" |
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| Related terms: | angular_distance astronomy | |
| 2. | [ noun ] (geography) an arc of the celestial equator eastward from the vernal equinox | |
| Related terms: | celestial_equator | |
