BG Geminorum

BG Geminorum is long period eclipsing binary star system which contains a K0 I secondary star in orbit around a primary star. The primary star has a mass at least 3.5 times that of the sun and could either be a B star (see Stellar Classification) or a black hole. Material from the K0 star is transferred to an accretion disk surrounding the unident...
Found on http://en.wikipedia.org/wiki/BG_Geminorum
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