| 释义 |
right ascension 【天文学】赤经 以上来源于:《21世纪大英汉词典》 right ascension符号为α缩写为RAn.【天文】赤经See alsodeclination, 1详细释义源自:《新世纪英汉大词典》Collins外研社 n.赤经;参见:declination【天文学】英英释义n.(astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestia |