Carte du Ciel and Gaia. I. Astrometry.
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https://b2find.eudat.eu/dataset/8984b142-b033-587d-a41c-ceb9d994714b
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资源简介：
The Carte du Ciel (CduC) archive at the University of Helsinki enables us to see the sky as it was about 120 years ago. The archive consists of single exposure and triple...
