The full USNO-B1.0 contains positional and proper motion data for more than a billion stars, occupies some 80 GB and has had a very limited distribution.The catalogue can be queried on-line.
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- 0完全版星表包括了超过十亿颗恒星的位置和自行数据,占用80GB的空间,而且发行量很少,你可以在线查询它的数据。