UBV minima for RU UMi
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The near-contact system RU UMi with an F0 primary and a K5 secondary was observed in U, B and V wavelengths in May and July 1998, as well as in March, May and July 1999. Six new...
近接双星系统（near-contact system）小熊座RU（RU UMi）的主星为F0型、伴星为K5型，研究人员于1998年5月、7月以及1999年3月、5月、7月在U、B、V波段对其进行了观测，共获得6组新的……
