Gaia DR3

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.</p> <p>Additionally from the 13th of June 2022, the full <span>Gaia DR3</span> adds radial velocities for more than 33 million sources (about 4 times more than Gaia DR2).

Followed by about 200 millions BP/RP spectra and about 1 million high resolution spectra from the radial velocity spectrometer (RVS). Finally Gaia DR3 publish a huge catalog of objects classification of more than 1.59 billion sources, and a large variaty of smaller specifica catalogs like non-single stars, variable sources, galaxy and QSO candidates, solar system objects, and more.</p> <p>The <span>Gaia (E)DR3</span> 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.</p> <p><span>Gaia (E)DR3</span> data is based on data collected between 25 July 2014 and 28 May 2017, spanning a period of 34 months of data collection.