UCAC1 Catalogue
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The UCAC1 is a high density, highly accurate, astrometric catalog of over 27 million stars in the Southern Hemisphere in the magnitude range of about 8 to 16. This version is...
UCAC1是一款高密度、高精度的天体测量星表，收录了南半球星等约8至16区间内的超过2700万颗恒星。本版本为……
