Gaia EDR3 (gaiaedr3)


The Gaia Early Data Release 3 (EDR3) enhances the DR2 catalogs by 118.79 million objects. It includes five-parameter astrometric solutions - positions on the sky, parallaxes, and proper motions - for more than 585 million sources, an additional pseudo-colour parameter for 800 million further sources (called six-parameter solution), and an additional 400 million sources with only positions, for a total of more than 1.8 billion sources with a mean G magnitude. The EDR3 release delivers an overall improvement in sky-coverage (almost complete down to 19 mag) and a great improvement in precision of both astrometric and photometric measurements. It spans 34 month of data collection by the Gaia satellite.

The reference epoch for Gaia DR3 (both Gaia EDR3 and the full Gaia DR3) is 2016.0. Positions and proper motions are referred to the ICRS. The time coordinate for Gaia EDR3 is the barycentric coordinate time (TCB).


If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (, processed by the Gaia Data Processing and Analysis Consortium (DPAC, Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

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