鬼星团自行数据
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资源简介：
High-precision proper motions for 257 and 296 stars in a 90’x90’ region centered on BD+20 2170 were obtained from seven plates taken with the Zo-se 40cm refractor (f=6895mm) in March, 1986 (see the "Plate Summary" section below), combined with six AC plates and the stellar positions in Russell’s (1976, Ph.D. Thesis, Pittsburgh University).
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中国科学院国家天文台创建时间：
2017-07-18
