Paper:	Physical Parameters of the Overcontact Binary AH Cnc in the Old Open Cluster M67
Volume:	349, Astrophysics of Variable Stars
Page:	375
Authors:	Yakut, K.; Aerts, C.
Abstract:	We present a photometric study of the overcontact binary AH Cnc. The CCD observations were done with the Russian-Turkish 1.5 m telescope and the light-curve was solved with the Wilson-Devinney code. The physical parameters of the components have been deduced as M1 = 1.22 MSolar , M2 = 0.20 MSolar , R1 = 1.37 RSolar , R2 = 0.66 RSolar , L1 = 2.65 LSolar and L2 = 0.63 LSolar from the obtained orbital parameters and the distance modules of M 67. AH Cnc has been compared with similar systems in the Hertzsprung-Russell diagram.

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