Photometry of the contact binary system V471 Cas |
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| Authors: | Liu Xuefu Tan Huisong |
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| Affiliation: | (1) Department of Astronomy, Beijing Normal University, China;(2) Yunnan Observatory, Chinese Academy of Sciences, China |
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| Abstract: | UBV photoelectric observations of the W UMa-type binary V471 Cas were made from September to November 1984. Its colour indices were found to be(B-V)=0.m771±0.m02 and(U-B)=0.m196±0.m02. TheU, B, andV light curves of V471 Cas show some photometric fluctuations. We found that its orbital period is not 0.335998 days which was given by GCVS (1986), but 0.405356 days.Photometric orbital elements of V471 Cas were found using the Wilson-Devinney method. V471 Cas is a contact system, in which the overcontact factor is 0.19, its mass ratio of two components is 0.5947, and orbital minclination is in 83.29 degrees. |
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