Table 2.
Further details on the number of sources of a certain type, or the number of sources for which a given data product is available in Gaia DR3.
| Data product or source type | Number of sources | Comments |
|---|---|---|
| Variable sources | ||
| Total | 10 509 536 | |
| Classified with supervised machine learning | 9 976 881 | 24 variability types or type groups |
| Active galactic nuclei | 872 228 | |
| Cepheids | 15 021 | |
| Compact companions | 6 306 | |
| Eclipsing binaries | 2 184 477 | |
| Long-period variables | 1 720 588 | |
| Microlensing events | 363 | |
| Planetary transits | 214 | |
| RR Lyrae stars | 271 779 | |
| Short-timescale variables | 471 679 | |
| Solar-like rotational modulation variables | 474 026 | |
| Upper-main-sequence oscillators | 54 476 | |
| Astrophysical parameters from mean BP/RP spectra | ||
| Total | 470 759 263 | G < 19 |
| Spectroscopic parameters | 470 759 263 | |
| Interstellar extinction and distances | 470 759 263 | |
| MCMC samples from the BP/RP AP estimation | 449 297 716 | |
| APs assuming an unresolved binary | 348 711 151 | |
| MCMC samples from BP/RP unresolved binary AP estimation | 348 711 151 | |
| Evolutionary parameters | 128 611 111 | Mass, age, evolutionary stage |
| Stars with emission-line classifications | 57 511 | |
| Sources with spectral types | 217 982 837 | |
| Hot stars with spectroscopic parameters | 2 382 015 | |
| Ultra-cool stars | 94 158 | |
| Cool stars with activity index | 1 349 499 | |
| Sources with Hα emission measurements | 235 384 119 | |
| Non-single stars | ||
| Total | 813 687 | |
| Acceleration solutions | 338 215 | |
| Orbital astrometric solutions | 169 227 | Including astroSpectroSB1 combined solutions |
| Orbital spectroscopic solutions (SB1/SB2) | 220 372 | Including astroSpectroSB1 combined solutions |
| Trend spectroscopic solutions | 56 808 | |
| Eclipsing binaries | 87 073 | Including eclipsingSpectro combined solutions |
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