UBVRI CCD photometry of Cepheus OB3
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Johnson CCD photometry was performed in the two subgroups of the association Cepheus OB3, for selected fields each containing at least one star with previous UBV photoelectric...
本研究针对仙王座OB3星协(Cepheus OB3)的两个子群,于各至少包含一颗已有UBV光电测光资料的恒星的选定天区中,开展了约翰逊CCD测光工作……



