UBVRI and H{alpha} in NGC 6530
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New UBVRI and H{alpha} photometry has been obtained for the young open cluster NGC 6530 located 10' east of the Lagoon Nebula (M8). We found 37 pre-main-sequence (PMS) stars...
我们已为坐落于礁湖星云（Lagoon Nebula，M8）以东10角分的年轻疏散星团NGC 6530获取了UBVRI与氢α（Hα）波段的测光数据。本研究共发现37颗主序前（pre-main-sequence，PMS）星……
