The 90000 stars Supplement to the PPM Catalogue

Name: The 90000 stars Supplement to the PPM Catalogue
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B2FIND2026-03-19 收录

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https://b2find.eudat.eu/dataset/86c90f7a-6276-57b3-a2d8-5b71687c67da

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Since its appearance in 1966, the SAO Catalogue (SAO, 1966) has been the primary source for stellar positions and proper motions. Typical values for the rms errors are 1 arcsec...