spectroscopic binary (Q1993624)
double-star system so close that the two stars can only be distinguished spectroscopically
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aliases spectroscopic binary star
 spectrum binary
description double-star system so close that the two stars can only be distinguished spectroscopically

External Links
(P1417) topic/spectroscopic-binary-star
(P2671) /g/120_f_s8
(P4466) 1557