Cilou on 08-Jun-2021 10:53:46 GMT about TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
This catalogue is a Xmatch of several surveys with different resolutions, from 4-6'' (WISEA) to 1-0.5'' (Tycho2, Gaia). About 4 million TIC identifiers have been added in SIMBAD in April 2021 on the basis of the 2MASS identifier. The SIMBAD team found that there are issues with confusion and very high proper motion stars, as well as some multiple entries. There can also be erroneous positions, for instance for TIC 41896699 = UCAC4 247-001373 (11'') and TIC 308188145 = UCAC4 295-000413 (22'').
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View annotation on catalogue IV/38