right t ascension赤经
geocentric right ascension地心赤经
right ascension mean sun平太阳赤经;的翻译是赤经平太阳
line of right ascension赤经圈
heliocentric right ascension日心赤经
right ascension system[天] 赤经系统;的翻译是赤经系统
astrometric right ascension天体测量赤经
precession in right ascension[天] 赤经岁差;赤纬岁差;的翻译是在赤经的岁差
apparent right ascension[天] 视赤经;的翻译是明显的赤经
N（名词） the angular distance measured eastwards along the celestial equator from the vernal equinox to the point at which the celestial equator intersects a great circle passing through the celestial pole and the heavenly object in question 赤经 ( symbol: α) [astronomy] → compare declination