The Guide Star Catalog II (GSC-II), version 2.3.2
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The Guide Star Catalog II (GSC-II) is an all-sky optical catalog based on 1" resolution scans of the photographic Sky Survey plates, at two epochs and three bandpasses, from the...
导星星表第二版（Guide Star Catalog II, GSC-II）是一套全天空光学星表，其数据基于两个观测历元、三个通带下的照相天图巡天底片的1角秒分辨率扫描结果，来自……
