All names: Gaia EDR3 548423278811480960, WDJ024131.37+744254.66, TIC 396264284, NLTT 8579, GALEX J024131.5+744253, SDSS J024131.56+744253.1, G221-2, Gaia DR3 548423278811480960, WD 0236+744, USNO-B1.0 1647-00025881, G 221-2, Gaia DR2 548423278811480960, J0241+7442, SDSS J024131.59+744252.9, 2MASS J02413135+7442545, GEN# +9.80221002, LSPM J0241+7442, 0236+745, WD 0236+745, LP 30-203, EGGR 413
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | Leggett et al. 2018 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Zuckerman et al. 2003 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 41 31.99 (0.02) | 02 41 31.97 (0.03) | 02 41 31.99 | 02 41 31.37 (0.03) | 02 41 31.97 | 02 41 30.86 | ||||||||||
| Declination | 74 42 49.95 (0.03) | 74 42 50.10 (0.03) | 74 42 49.95 | 74 42 54.66 (0.03) | 74 42 50.10 | 74 42 50.40 | ||||||||||
| Spectral type | DA | DA | DA | DA5.7 | DA | DA | DA | DA5.5 | DA6 | |||||||
| Effective temperature | [K] | 8876.0 (52) | 8946.0 (48) | 8952.0 (67) | 8792.0 (286) | 8874.0 | 9170.0 (140) | 8932.0 (49) | ||||||||
| log(g) | [cgs] | 7.96 (0.009) | 7.98 (0.007) | 7.98 (0.01) | 8.00 (0.07) | 7.97 | 8.27 (0.08) | 7.96 (0.01) | ||||||||
| Mass | [M☉] | 0.571 (0.008) | 0.584 (0.006) | 0.587 (0.008) | 0.596 (0.05) | 0.578 | 0.77 (0.05) | 0.577 (0.008) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||||
| Cooling age | [Gyr] | 0.8100 | 0.8390 (0.1) | 0.7833 | ||||||||||||
| 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] | 20.54 (0.03) | 20.59 (0.04) | 21.36 (0.9) | 20.59 (0.04) | 20.54 | 20.54 (0.03) | 20.59 (0.04) | ||||||||
| Distance | [pc] | 48.70 (0.08) | 48.57 (0.09) | 46.82 (2) | 48.58 (0.1) | 40.00 | 48.70 | 48.70 (0.08) | 48.58 (0.1) | |||||||
| Composition | H | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 151.0445533 (0.03) | 151.0280148 (0.06) | 151.045 (0.03) | 151.0280148 | |||||||||||
| Proper motion (declination) | [mas/yr] | -293.8941721 (0.04) | -293.8849978 (0.06) | -293.894 (0.04) | -293.8849978 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 16.13 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 15.90 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 15.64 (0.06) | 15.69 | 15.64 (0.06) | |||||||||||||
| H magnitude | 15.54 (0.1) | 16.28 | 15.54 (0.1) | |||||||||||||
| K magnitude | 15.61 (0.2) | 15.30 | 15.61 (0.2) | |||||||||||||
| u magnitude | 16.39 (0.007) | 16.41 (0.007) | 16.41 (0.007) | |||||||||||||
| g magnitude | 15.98 (0.004) | 15.98 (0.004) | ||||||||||||||
| r magnitude | 15.99 (0.004) | 15.99 (0.004) | ||||||||||||||
| i magnitude | 16.06 (0.004) | 16.06 (0.004) | ||||||||||||||
| z magnitude | 16.19 (0.008) | 16.19 (0.008) | ||||||||||||||
| G magnitude | 15.93 (0.003) | 15.95 | 15.93 | 15.93 (0.003) | 15.95 | |||||||||||
| BP magnitude | 16.02 (0.003) | 16.02 | 16.02 | |||||||||||||
| RP magnitude | 15.78 (0.003) | 15.78 | 15.78 | |||||||||||||
| Pan g magnitude | 16.02 (0.006) | 16.01 (0.01) | ||||||||||||||
| Pan r magnitude | 16.03 (0.003) | 16.05 (0.02) | ||||||||||||||
| Pan i magnitude | 16.10 (0.003) | 16.10 (0.002) | ||||||||||||||
| Pan z magnitude | 16.22 (0.004) | 16.24 (0.0004) | ||||||||||||||
| Pan y magnitude | 16.31 (0.01) | 16.33 (0.02) | ||||||||||||||
| E(B-V) | 0.002 | |||||||||||||||
* 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.