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Terms for subject Astronomy (62 entries)

piscis Austrinus	南鱼星座
quasi-stellar radio source	准恒星射电源
radiation unit	辐射单位测量宇宙射线的吸收用的长度单位
rayleigh	瑞利极光和夜天的发光强度的单位，等于106量子/厘米2
right ascension of meridian	子午圈赤经
right ascension of the mean sun	正太阳赤经
sidereal variation	恒星日变化
sidereal year	恒星年等于365.242199日
Southern cross	南十字
Southern cross	南十字〔星〕座
stratospheric	同温房的
sudden cosmic absorption	突发宇宙吸收
sudden ionospheric disturbances	电离层突然摄动
sunspot number
sunspot number	日斑数
terrestrial time	地史时期
the Galaxy	银河系
universal time	国际标准时
Via Lactea	银河
violent galaxy	强活动星系