All names: GALEX J031807.9+021226, Gaia DR2 3268703483599047296, Gaia EDR3 3268703483599047296, WDJ03187.89+021226.20, WDJ031807.89+021226.21, 2MASS J03180788+0212264, SDSS J031807.93+021225.9, Gaia DR3 3268703483599047296, TIC 274088493, SDSS J031807.93+021226.0, J0318+0212
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 18 08.03 (0.1) | 03 18 08.03 | 03 18 08.03 | 03 18 07.89 (0.1) | 03 18 08.03 | ||||||
| Declination | 02 12 25.65 (0.09) | 02 12 25.67 | 02 12 25.65 | 02 12 26.22 (0.09) | 02 12 25.67 | ||||||
| Spectral type | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 7407.0 (38) | 7403.0 (37) | 7406.0 (39) | 7350.0 (135) | ||||||
| log(g) | [cgs] | 8.51 (0.009) | 8.54 (0.01) | 8.53 (0.01) | 8.50 (0.03) | ||||||
| Mass | [M☉] | 0.924 (0.008) | 0.939 (0.01) | 0.938 (0.01) | 0.917 (0.03) | ||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 3.7400 | |||||||||
| 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] | 19.11 (0.1) | 19.43 (0.2) | 19.43 (0.2) | 19.11 | 19.11 (0.1) | 19.43 (0.2) | ||||
| Distance | [pc] | 52.33 (0.3) | 51.47 (0.5) | 51.46 (0.5) | 52.33 | 52.33 (0.3) | 51.46 (0.5) | ||||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | 136.2681713 (0.1) | 136.1906184 (0.3) | 136.268 (0.1) | 136.1906184 | ||||||
| Proper motion (declination) | [mas/yr] | -35.54898744 (0.1) | -35.08732639 (0.3) | -35.549 (0.1) | -35.08732639 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 17.04 (0.03) | 16.98 (0.2) | |||||||||
| H magnitude | 16.45 (0.2) | 16.45 (0.2) | |||||||||
| K magnitude | |||||||||||
| u magnitude | 18.25 (0.01) | 18.25 (0.01) | 18.25 (0.01) | ||||||||
| g magnitude | 17.77 (0.005) | 17.77 (0.005) | |||||||||
| r magnitude | 17.65 (0.006) | 17.65 (0.006) | |||||||||
| i magnitude | 17.62 (0.007) | 17.62 (0.007) | |||||||||
| z magnitude | 17.68 (0.02) | 17.68 (0.02) | |||||||||
| G magnitude | 17.61 (0.01) | 17.64 | 17.61 | 17.61 (0.003) | 17.64 | ||||||
| BP magnitude | 17.78 (0.01) | 17.77 | 17.77 | ||||||||
| RP magnitude | 17.30 (0.02) | 17.30 | 17.30 | ||||||||
| Pan g magnitude | 17.77 (0.006) | 17.77 (0.005) | |||||||||
| Pan r magnitude | 17.66 (0.004) | 17.66 (0.004) | |||||||||
| Pan i magnitude | 17.64 (0.002) | 17.64 (0.003) | |||||||||
| Pan z magnitude | 17.71 (0.004) | 17.71 (0.003) | |||||||||
| Pan y magnitude | 17.74 (0.009) | 17.74 (0.009) | |||||||||
| E(B-V) | 0.001 | ||||||||||
* 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.