
Meaning of RIGHT ASCENSION
| Pronunciation: | | rIt u'senshun
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WordNet Dictionary |
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- [n] an arc of the celestial equator eastward from the vernal equinox
- [n] (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"
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| | Synonyms: | | celestial longitude, RA |
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| | See Also: | | angular distance, celestial equator, equinoctial, equinoctial circle, equinoctial line | |
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