Gaia DR1 TGAS at ESA

This table is a subset of DR1 GaiaSource comprising those stars in the Hipparcos and Tycho-2 Catalogues for which a full 5-parameter astrometric solution has been possible in Gaia Data Release 1. This is possible because the early Hipparcos epoch positions break some degeneracies due to the limited Gaia time coverage. This table contains a substantial fraction of the around 2.5 million stars in the Hipparcos and Tycho-2 catalogue. Many stars have been excluded due to several reasons, such as saturation, cross-match errors or bad astrometric solution.

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/esavo/gaia/csdr1/tgas
Related Identifier http://archives.esac.esa.int/gaia
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://esavo/gaia/csdr1/tgas
Provenance
Publisher European Space Agency
Publication Year 2018
OpenAccess true
Contact Bruno Merin <esdc_leads(at)cosmos.esa.int>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy