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HD 214876


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A photometric study of W UMa-type binary BC Gru
UBVR cIc light curves were obtained for the W UMa-type system BC Gru.Five times of minima were determined and ephemeris was derived. Anoptimization procedure aimed at solving binary light curves ispresented. An application to BC Gru data illustrates the operation ofthe method. The present analysis indicates that BC Gru is a contactbinary with the mass ratio of 1.77 +/- 0.49 and an inclination of 66.9+/- 2.8.

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观测天体数据

星座:天鶴座
右阿森松:22h42m07.95s
赤纬:-48°10'32.1"
视星:8.819
距离:383.142 天文距离
右阿森松适当运动:-8.7
赤纬适当运动:1.9
B-T magnitude:10.441
V-T magnitude:8.953

目录:
适当名称   (Edit)
HD 1989HD 214876
TYCHO-2 2000TYC 8449-402-1
USNO-A2.0USNO-A2 0375-39997975
HIPHIP 112081

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