US Naval Observatory B
收藏B2FIND2026-04-11 收录
下载链接：
https://b2find.eudat.eu/dataset/0843f007-77c2-5d26-a621-48226fbbd2cc
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资源简介：
The USNO-B1.0 Catalogue presents positions, proper motions, magnitudes in various optical passbands, and star/galaxy estimators for 1,045,175,762 objects derived...
