K-Line photometry of stars in Population I clusters
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Photoelectric photometry of the K-line of calcium has been performed for the A stars of five open clusters (Hyades, Pleiades, IC 2391, IC 2602, and NGC 6475) and one association...
已针对五个疏散星团(open clusters)与一个星协(association)中的A型星(A stars)开展钙K线光电测光工作,所涉疏散星团包括毕星团(Hyades)、昴星团(Pleiades)、IC 2391、IC 2602及NGC 6475……



