Table 1

Number of sources of a given type or the number for which a given data product is available in Gaia DR2.

Data product or source type Number of sources
Total 1 692 919 135
5-parameter astrometry 1 331 909 727
2-parameter astrometry 361 009 408
ICRF3 prototype sources 2820
Gaia-CRF2 sources 556 869
G-band 1 692 919 135
GBP-band 1 381 964 755
GRP-band 1 383 551 713
Radial velocity 7 224 631
Classified as variable 550 737
Variable type estimated 363 969
Detailed characterisation of light curve 390 529
Effective temperature Teff 161 497 595
Extinction AG 87 733 672
Colour excess E(GBPGRP) 87 733 672
Radius 76 956 778
Luminosity 76 956 778
SSO epoch astrometry and photometry 14 099

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