All names: Gaia EDR3 1880814699165544064, GALEX J222949.8+271003, Gaia DR2 1880814694869017856, SDSS J222949.78+271003.8, SDSS J222949.78+271003.80, Gaia DR3 1880814699165544064
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 29 49.93 (0.1) | 22 29 49.78 | 22 29 49.82 (0.6) | 22 29 49.93 | 22 29 49.78 | ||||
| Declination | 27 10 02.50 (0.1) | 27 10 03.81 | 27 10 03.75 (0.7) | 27 10 02.50 | 27 10 03.81 | ||||
| Spectral type | DA | DA: | DA | DA | |||||
| Effective temperature | [K] | 9931.0 (37) | 9565.0 (248) | ||||||
| log(g) | [cgs] | 8.24 (0.04) | 7.81 (0.06) | ||||||
| Mass | [M☉] | 0.584 (0.02) | 0.492 (0.04) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 5.87 (0.1) | 5.87 | ||||||
| Distance | [pc] | 170.42 (4) | 170.42 | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 83.793 (0.2) | 62.3 (2) | ||||||
| Proper motion (declination) | [mas/yr] | -11.781 (0.2) | 1.9 (2) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.00 (0.02) | 18.93 (0.07) | 19.02 (0.02) | ||||||
| g magnitude | 18.40 (0.007) | 18.40 (0.06) | 18.40 (0.007) | ||||||
| r magnitude | 18.48 (0.009) | 18.46 (0.06) | 18.47 (0.009) | ||||||
| i magnitude | 18.59 (0.01) | 18.59 (0.06) | 18.58 (0.01) | ||||||
| z magnitude | 18.78 (0.03) | 18.76 (0.05) | 18.77 (0.04) | ||||||
| G magnitude | 18.25 (0.003) | 18.44 | 18.25 | 18.44 (0.003) | |||||
| BP magnitude | 18.11 (0.04) | ||||||||
| RP magnitude | 17.90 (0.03) | ||||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.028 | ||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.