All names: WDJ023117.04+285939.88, UCAC4 595-006335, Gaia DR2 131188715200383872, LAMOST J023116.91+285939.6, GALEX J023116.9+285939, 2MASS J02311704+2859400, J0231+2859, Gaia DR3 131188715200383872, Gaia EDR3 131188715200383872, TIC 353892451
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Tremblay et al. 2020 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 31 16.90 (0.3) | 02 31 16.90 (0.3) | 02 31 16.90 | 02 31 17.04 (0.3) | 02 31 16.90 | |||||
| Declination | 28 59 39.63 (0.3) | 28 59 39.64 (0.3) | 28 59 39.63 | 28 59 39.93 (0.3) | 28 59 39.64 | |||||
| Spectral type | DA | DA | DA | DA | DA | DA | ||||
| Effective temperature | [K] | 6985.0 (48) | 7048.0 (8) | 6979.2 (28) | 6980.0 (30) | 6986.0 (28) | ||||
| log(g) | [cgs] | 7.57 (0.03) | 7.55 (0.01) | 7.67 (0.02) | 7.67 (0.02) | 7.51 (0.01) | ||||
| Mass | [M☉] | 0.393 (0.01) | 0.362 (0.008) | 0.348 (0.008) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.9000 | ||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(C/H) | ||||||||||
| log(N/H) | ||||||||||
| log(O/H) | ||||||||||
| log(Na/H) | ||||||||||
| log(Mg/H) | ||||||||||
| log(Al/H) | ||||||||||
| log(Si/H) | ||||||||||
| log(P/H) | ||||||||||
| log(S/H) | ||||||||||
| log(Sc/H) | ||||||||||
| log(Ti/H) | ||||||||||
| log(Cr/H) | ||||||||||
| log(Mn/H) | ||||||||||
| log(Fe/H) | ||||||||||
| log(Ni/H) | ||||||||||
| Parallax | [mas] | 35.88 (0.4) | 35.88 (0.3) | 35.88 (0.3) | 38.47 (0.4) | 35.88 | 35.88 (0.4) | 38.47 (0.4) | ||
| Distance | [pc] | 27.87 (0.3) | 27.87 (0.3) | 27.87 (0.3) | 26.00 (0.3) | 27.87 | 27.87 (0.3) | 26.00 (0.3) | ||
| Composition | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -118.754985 (0.4) | -118.755 (0.4) | -115.4298729 | ||||||
| Proper motion (declination) | [mas/yr] | -18.88431335 (0.3) | -18.884 (0.3) | -15.76685579 | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.50 (0.02) | |||||||||
| V magnitude | 15.10 (0.1) | |||||||||
| R magnitude | 14.97 (0.09) | |||||||||
| I magnitude | ||||||||||
| J magnitude | 14.41 (0.04) | 14.41 (0.04) | ||||||||
| H magnitude | 14.16 (0.05) | 14.16 (0.05) | ||||||||
| K magnitude | 14.26 (0.07) | 14.26 (0.07) | ||||||||
| u magnitude | ||||||||||
| g magnitude | 15.24 (0.06) | |||||||||
| r magnitude | 15.06 (0.03) | |||||||||
| i magnitude | 14.95 (0.01) | |||||||||
| z magnitude | ||||||||||
| G magnitude | 15.02 (0.002) | 15.04 | 15.02 | 15.02 (0.003) | 15.04 | |||||
| BP magnitude | 15.21 (0.002) | 15.22 | ||||||||
| RP magnitude | 14.69 (0.001) | 14.70 | ||||||||
| Pan g magnitude | 15.24 (0.0004) | |||||||||
| Pan r magnitude | 15.06 (0.002) | |||||||||
| Pan i magnitude | 15.04 (0.004) | |||||||||
| Pan z magnitude | 15.07 (0.001) | |||||||||
| Pan y magnitude | 15.10 (0.004) | |||||||||
| E(B-V) | 0.000 | |||||||||
* 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.