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Data Release 1

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.


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

Data time span

14 months of observations


  • 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.


All the data are available from the ESA Gaia Archive:

and from the main partner data centres:

Centre de Données astronomiques de Strasbourg (CDS):
ASI Science Data Center (ASDC):
Astronomisches Rechen-Institut (ARI):
Leibniz-Institut für Astrophysik Potsdam (AIP):


Last Update: 17 September 2019
19-May-2024 01:37 UT

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