Sun's Binary Dark Star太阳的黑暗伴星
visual binary star目视双星
binary star binary system两颗星在相互引力作用下互相绕转的恒星系统
nearby binary star system近双星系统
close binary star[天] 密近双星
eclipsing binary star[天] 食双星
Binary Star VV Cephei仙王座VV双星
wr binary starwr双星
N（名词） a double star system comprising two stars orbiting around their common centre of mass. A visual binary can be seen through a telescope. A spectroscopic binary can only be observed by the spectroscopic Doppler shift as each star moves towards or away from the earth 双子星 (Sometimes shortened to binary) → see also optical double star, eclipsing binary