Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia EDR3 stars brighter than G=18.5

F. Anders, A. Khalatyan, A. B. A. Queiroz, C. Chiappini, J. Ardèvol, L. Casamiquela, F. Figueras, Ó. Jiménez-Arranz, C. Jordi, M. Monguió, M. Romero-Gómez, D. Altamirano, T. Antoja, R. Assaad, T. Cantat-Gaudin, A. Castro-Ginard, H. Enke, L. Girardi, G. Guiglion, S. KhanX. Luri, A. Miglio, I. Minchev, P. Ramos, B. X. Santiago, M. Steinmetz

Research output: Contribution to journalArticlepeer-review

8 Downloads (Pure)


We present a catalogue of 362 million stellar parameters, distances, and extinctions derived from Gaia’s Early Data Release (EDR3) cross-matched with the photometric catalogues of Pan-STARRS1, SkyMapper, 2MASS, and AllWISE. The higher precision of the Gaia EDR3 data, combined with the broad wavelength coverage of the additional photometric surveys and the new stellar-density priors of the StarHorse code, allows us to substantially improve the accuracy and precision over previous photo-astrometric stellar-parameter estimates. At magnitude G = 14 (17), our typical precisions amount to 3% (15%) in distance, 0.13 mag (0.15 mag) in V-band extinction, and 140 K (180 K) in effective temperature. Our results are validated by comparisons with open clusters, as well as with asteroseismic and spectroscopic measurements, indicating systematic errors smaller than the nominal uncertainties for the vast majority of objects. We also provide distance- and extinction-corrected colour-magnitude diagrams, extinction maps, and extensive stellar density maps that reveal detailed substructures in the Milky Way and beyond. The new density maps now probe a much greater volume, extending to regions beyond the Galactic bar and to Local Group galaxies, with a larger total number density. We publish our results through an ADQL query interface ( as well as via tables containing approximations of the full posterior distributions. Our multi-wavelength approach and the deep magnitude limit render our results useful also beyond the next Gaia release, DR3.
Original languageEnglish
Article numberA91
Number of pages27
JournalAstronomy and Astrophysics
Publication statusPublished - 7 Feb 2022

Bibliographical note

A&A, accepted, 27 pages, 25 figures. Fig. 5 has changed with respect to v1 (post-processing bug corrected). For various options to access the data see


  • astro-ph.GA
  • astro-ph.SR


Dive into the research topics of 'Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia EDR3 stars brighter than G=18.5'. Together they form a unique fingerprint.

Cite this