In this contribution I provide a brief summary of the contents of Gaia DR1. This is followed by a discussion of studies in the literature that attempt to characterize the quality of the Tycho-Gaia Astrometric Solution parallaxes in Gaia DR1, and I point out a misconception about the handling of the known systematic errors in the Gaia DR1 parallaxes. I highlight some of the more unexpected uses of the Gaia DR1 data and close with a look ahead at the next Gaia data releases, with Gaia DR2 coming up in April 2018.
@article{arxiv.1709.01216,
title = {The Gaia sky: version 1.0},
author = {Anthony G. A. Brown},
journal= {arXiv preprint arXiv:1709.01216},
year = {2018}
}
Comments
10 pages, 1 figure, to appear in Proceedings of IAU Symposium 330 "Astrometry and Astrophysics in the Gaia Sky", slightly edited version, updated references