ESA Science & Technology - Data Release 1

Gaia's first sky map. Credit: ESA/Gaia/DPAC. Acknowledgement: A. Moitinho & M. Barros (CENTRA – University of Lisbon), on behalf of DPAC.

Date

Gaia's first data release was published on 14 September 2016

Data time span

14 months of observations

Contents

• Positions and Gaia 'G' magnitudes for 1.1 billion stars using only Gaia data;
• Positions, parallaxes (distance indicators) and proper motions for more than 2 million stars using the Tycho-Gaia Astrometric Solution (TGAS);
• Light curves and characteristics for about 3000 variable stars;
• Positions and G magnitudes for more than 2000 quasars - extragalactic sources used to define the celestial reference frame.

Access

All the data are available from the ESA Gaia Archive:

and from the main partner data centres:

Centre de Données astronomiques de Strasbourg (CDS): http://cds.unistra.fr/gaia
ASI Science Data Center (ASDC): http://gaiaportal.asdc.asi.it
Astronomisches Rechen-Institut (ARI): http://gaia.ari.uni-heidelberg.de
Leibniz-Institut für Astrophysik Potsdam (AIP): http://gaia.aip.de