XY UMa BVRI light curves
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https://b2find.eudat.eu/dataset/210adee7-a4ce-51ae-aa60-a6835a419a61
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New CCD photometric observations of the chromospherically active binary XY Ursae Majoris (XY UMa) were obtained every year since 2006. The light curves obtained in the late...
自2006年起，我们每年均获取色球活动双星大熊座XY（XY Ursae Majoris，XY UMa）的CCD测光观测数据。所获得的光变曲线采集于观测后期……
