英语词汇“right ascension”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	right ascension
释义	right ascension n. Abbr. RA The angular distance of a celestial body or point on the celestial sphere, measured eastward from the vernal equinox along the celestial equator to the hour circle of the body or point and expressed in degrees or hours.
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