UCAC4 nearby star survey
收藏B2FIND2026-03-19 收录
下载链接：
https://b2find.eudat.eu/dataset/8396e6c2-b5c8-5ace-89c8-bd1c3a9ae5af
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资源简介：
We use data from the U.S. Naval Observatory fourth CCD Astrograph Catalog (UCAC4) in combination with photometry from the AAVSO Photometric All-Sky Survey and Two Micron All-Sky...
