All names: WD 1257+04, EGGR 293, WDJ125950.35+043126.42, Gaia DR2 3705070756419217408, PB 4419, SDSS J125950.35+043126.2, 2MASS J12595034+0431263, Gaia EDR3 3705070756419217408, TIC 411238722, GD 267, J1259+0431, PG 1257+048, Gaia DR3 3705070756419217408, WD 1257+047, LP 556-35, LAMOST J125950.39+043126.3, GALEX J125950.4+043124, GEN# +6.10060267, SDSS J125950.34+043126.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 59 50.27 (0.03) | 12 59 50.27 (0.06) | 12 59 50.27 | 12 59 50.35 (0.03) | 12 59 50.27 | 12 59 50.38 | ||||||||
| Declination | 04 31 24.75 (0.02) | 04 31 24.80 (0.04) | 04 31 24.75 | 04 31 26.42 (0.02) | 04 31 24.80 | 04 31 32.52 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA2.2 | DA2.5 | |||||||
| Effective temperature | [K] | 21753.0 (287) | 21754.0 (288) | 20650.0 | 23260.0 (362) | 21759.0 (32) | 22595.0 (208) | |||||||
| log(g) | [cgs] | 7.96 (0.01) | 7.95 (0.01) | 7.89 | 8.01 (0.05) | 7.95 (0.005) | 7.99 (0.009) | |||||||
| Mass | [M☉] | 0.603 (0.008) | 0.6 (0.009) | 0.567 | 0.63 (0.03) | 0.625 (0.007) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.0452 | ||||||||||||
| 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] | 13.19 (0.04) | 13.14 (0.06) | 13.19 | 13.19 (0.04) | 13.14 (0.06) | ||||||||
| Distance | [pc] | 75.80 (0.2) | 76.10 (0.3) | 81.00 | 75.80 | 75.80 (0.2) | 76.10 (0.3) | |||||||
| Composition | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -75.63473037 (0.05) | -75.55789375 (0.1) | -75.635 (0.06) | -75.55789375 | |||||||||
| Proper motion (declination) | [mas/yr] | -103.9173727 (0.05) | -104.0034848 (0.1) | -103.917 (0.05) | -104.0034848 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | yes | |||||||||||||
| B magnitude | 14.96 | |||||||||||||
| V magnitude | 14.99 | 15.05 | ||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 15.51 (0.005) | |||||||||||||
| H magnitude | 15.55 (0.009) | |||||||||||||
| K magnitude | 15.62 (0.02) | |||||||||||||
| u magnitude | 14.75 (0.004) | 14.75 (0.004) | ||||||||||||
| g magnitude | 14.77 (0.003) | 14.77 (0.003) | ||||||||||||
| r magnitude | 15.14 (0.004) | 15.14 (0.004) | ||||||||||||
| i magnitude | 15.47 (0.004) | 15.47 (0.004) | ||||||||||||
| z magnitude | 15.79 (0.007) | 15.79 (0.007) | ||||||||||||
| G magnitude | 14.95 (0.001) | 14.97 | 14.95 | 14.95 (0.003) | 14.97 | |||||||||
| BP magnitude | 14.85 (0.001) | 14.83 | 14.83 | |||||||||||
| RP magnitude | 15.16 (0.002) | 15.17 | 15.17 | |||||||||||
| Pan g magnitude | 14.81 (0.003) | |||||||||||||
| Pan r magnitude | 15.17 (0.003) | |||||||||||||
| Pan i magnitude | 15.48 (0.003) | |||||||||||||
| Pan z magnitude | 15.75 (0.004) | |||||||||||||
| Pan y magnitude | 15.94 (0.004) | |||||||||||||
| E(B-V) | 0.003 | |||||||||||||
* 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.