Astronomy, a handy manual for students and others (1918)
Dyson, Frank Watson, Sir, 1868-1939 · New York, E.P. Dutton & Co. · leaf 242
way, for it is found that theminimum brightness occurs a day before the timewhen the two stars are in line as seen from the Earth.The light variation cannot, therefore, be explained asdue to an occultation of one star by another, and nosatisfactory explanation has been given. C Geminorum.—This star… … Diag. XCIII.Light changes of ( Geminorum. which it decreases. Forty-fourphotographs of the stars spectrum were taken atthe Lick Observatory between November 11, 1898and February 11, 1900. These showed that the star isa spectroscopic binary, of which one component isbright and the other dark. The…
Astronomy
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