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oai:gaia.aip.de:tables/gaiadr2_contrib.geometric_distance2022-06-15tables

10.17876/gaia/dr.2/50Estimating Distance from ParallaxesBailer-Jones, CorynRybizki, JanFouesneau, MorganMantelet, GregoryAstronomyLeibniz Institute for Astrophysics Potsdam (AIP)The catalogue provides distances estimates (and uncertainties therein) for 1.33 billion stars over the whole sky brighter than about G=20.7. These have been estimated using the parallaxes (and their uncertainties) from Gaia data release 2. A Bayesian procedure was used involving a prior with a single parameter L(l,b), which varies smoothly with Galactic longitude and latitude according to a Galaxy model. The posterior is summarized with a point estimate (usually the mode) and a confidence interval (usually the 68% highest density interval). The estimation procedure is described in detail in the accompanying paper ([link](https://arxiv.org/abs/1804.10121)), which also analyses the catalogue content.2018-04-26CC0Dataset