All names: Gaia DR2 3683519503881169920, FAUST 3427, SDSS J124428.57-011857.9, PG 1241-010, Gaia DR3 3683519503881169920, USNO-B1.0 0886-00217142, SDSS J124428.55-011859.0, SDSS J124428.54-011858.9, GALEX J124428.5-011857, 1241-010, J1244-0119, TIC 51779023, Gaia EDR3 3683519503881169920, 1SWASP J124428.57-011858.1, WDJ124428.57-011857.85, 2MASS J12442857-0118577, WD 1241-010
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | Leggett et al. 2018 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 44 28.51 (0.04) | 12 44 28.51 (0.07) | 12 44 28.51 | 12 44 28.57 (0.04) | 12 44 28.51 | 12 44 28.01 | |||||||||
| Declination | -01 19 00.60 (0.02) | -01 19 00.51 (0.04) | -01 19 00.60 | -01 18 57.85 (0.02) | -01 19 00.51 | -01 18 54.36 | |||||||||
| Spectral type | DA | DA | DA | DA | DA2.1 | DA2 | |||||||||
| Effective temperature | [K] | 22815.0 (198) | 22816.0 (197) | 24480.0 (374) | 23459.0 (25) | 23800.0 (362) | 24861.0 (219) | ||||||||
| log(g) | [cgs] | 7.26 (0.008) | 7.25 (0.01) | 7.37 (0.05) | 7.38 (0.003) | 7.33 (0.05) | 7.36 (0.009) | ||||||||
| Mass | [M☉] | 0.332 (0.003) | 0.334 (0.003) | 0.41 (0.01) | 0.4 (0.01) | 0.369 (0.003) | |||||||||
| log(Luminosity) | [L☉] | -0.83 | |||||||||||||
| Cooling age | [Gyr] | 0.0229 | |||||||||||||
| 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] | 12.01 (0.05) | 11.74 (0.5) | 11.90 (0.08) | 12.01 | 12.01 (0.05) | 11.90 (0.08) | ||||||||
| Distance | [pc] | 83.27 (0.3) | 85.18 (3) | 84.06 (0.6) | 86.00 | 88.00 | 83.27 | 83.27 (0.3) | 84.06 (0.6) | ||||||
| Composition | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -57.11537128 (0.07) | -56.81901691 (0.2) | -57.115 (0.07) | -56.81901691 | ||||||||||
| Proper motion (declination) | [mas/yr] | -171.2858677 (0.05) | -171.3579456 (0.08) | -171.286 (0.05) | -171.3579456 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 13.86 | ||||||||||||||
| V magnitude | 14.00 | 14.00 | 14.00 | ||||||||||||
| R magnitude | 14.30 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 14.42 (0.04) | ||||||||||||||
| H magnitude | 14.54 (0.1) | ||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 13.75 (0.004) | 13.75 (0.004) | 13.78 | ||||||||||||
| g magnitude | 16.33 (0.01) | 16.33 (0.01) | 16.14 | ||||||||||||
| r magnitude | 14.45 (0.01) | 14.45 (0.01) | 14.18 | ||||||||||||
| i magnitude | 14.81 (0.001) | 14.81 (0.001) | 14.51 | ||||||||||||
| z magnitude | 14.80 (0.006) | 14.80 (0.006) | 14.83 | ||||||||||||
| G magnitude | 13.99 (0.001) | 14.01 | 13.99 | 13.99 (0.003) | 14.01 | ||||||||||
| BP magnitude | 13.88 (0.001) | 13.85 | 13.85 | ||||||||||||
| RP magnitude | 14.21 (0.001) | 14.20 | 14.20 | ||||||||||||
| Pan g magnitude | 13.85 (0.001) | ||||||||||||||
| Pan r magnitude | 14.22 (0.006) | ||||||||||||||
| Pan i magnitude | 14.54 (0.002) | ||||||||||||||
| Pan z magnitude | 14.80 (0.004) | ||||||||||||||
| Pan y magnitude | 14.97 (0.005) | ||||||||||||||
| 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.