All names: SDSS J103443.34+224548.8, J1034+2245, GALEX J103443.3+224549, SDSS J103443.35+224548.8, NLTT 24727, TIC 171645434, Gaia DR3 721648380828681984, PSO J158.6801+22.7634, USNO-B1.0 1127-00224690, Gaia DR2 721648380828681984, PM J10347+2245, Gaia EDR3 721648380828681984, 10347+2245, WDJ103443.43+224548.88, LSPM J1034+2245, 2MASS J10344343+2245483, WD 1032+230, LP 372-37
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Coutu et al. 2019 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Sayres et al. 2012 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 34 43.17 (0.05) | 10 34 43.35 | 10 34 43.43 | 10 34 43.17 (0.09) | 10 34 43.40 | 10 34 43.17 | 10 34 43.43 (0.05) | 10 34 43.17 | |||||||||
| Declination | 22 45 48.38 (0.04) | 22 45 48.81 | 22 45 48.88 | 22 45 48.39 (0.07) | 22 45 48.30 | 22 45 48.38 | 22 45 48.88 (0.04) | 22 45 48.39 | |||||||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DZ | ||||||||
| Effective temperature | [K] | 7228.0 (22) | 7214.0 (75) | 6810.0 (75) | 8674.0 | 8358.0 | 6510.0 (96) | 6770.0 (20) | 6920.0 (50) | ||||||||
| log(g) | [cgs] | 8.19 (0.006) | 8.21 | 8.14 (0.02) | 8.53 | 8.44 | 8.00 (0) | 8.07 (0.01) | |||||||||
| Mass | [M☉] | 0.697 (0.006) | 0.7052 | 0.664 (0.01) | 0.935 | 0.863 | 0.57 (0.1) | 0.619 (0.01) | |||||||||
| log(Luminosity) | [L☉] | -3.59 | |||||||||||||||
| Cooling age | [Gyr] | 2.0500 | 2.1100 | 2.2990 (0.1) | 2.3530 | 2.2330 | |||||||||||
| log(H/He) | -4.0 | <-3.8751 | |||||||||||||||
| log(C/He) | |||||||||||||||||
| log(Ca/He) | -8.74 | -8.8469 (0.04) | -9.0 | -9.45 | -9.5 (0.2) | ||||||||||||
| log(Ca/H) | |||||||||||||||||
| log(N/He) | |||||||||||||||||
| log(O/He) | |||||||||||||||||
| log(Na/He) | |||||||||||||||||
| log(Mg/He) | |||||||||||||||||
| log(Al/He) | |||||||||||||||||
| log(Si/He) | |||||||||||||||||
| log(P/He) | |||||||||||||||||
| log(S/He) | |||||||||||||||||
| log(Cl/He) | |||||||||||||||||
| log(Sc/He) | |||||||||||||||||
| log(Ti/He) | |||||||||||||||||
| log(V/He) | |||||||||||||||||
| log(Cr/He) | |||||||||||||||||
| log(Mn/He) | |||||||||||||||||
| log(Fe/He) | |||||||||||||||||
| log(Co/He) | |||||||||||||||||
| log(Ni/He) | |||||||||||||||||
| log(Cu/He) | |||||||||||||||||
| log(Zn/He) | |||||||||||||||||
| log(Ga/He) | |||||||||||||||||
| log(Ge/He) | |||||||||||||||||
| log(Sr/He) | |||||||||||||||||
| Parallax | [mas] | 24.43 (0.06) | 24.52 (0.1) | 24.52 | 24.52 (0.1) | 24.52 (0.1) | 24.43 | 24.43 (0.06) | 24.52 (0.1) | ||||||||
| Distance | [pc] | 40.93 (0.1) | 40.78 (0.2) | 40.79 (0.2) | 40.79 (0.2) | 40.79 (0.2) | 36.50 (0.7) | 42.20 | 40.93 | 40.93 (0.1) | 40.79 (0.2) | ||||||
| Composition | He | He | He | He | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -226.7874722 (0.06) | -226.6883128 (0.1) | -221.0 | -226.787 (0.06) | -226.688 | |||||||||||
| Proper motion (declination) | [mas/yr] | -31.69087913 (0.06) | -31.66801728 (0.1) | -25.0 | -31.691 (0.06) | -31.668 | |||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 16.60 | ||||||||||||||||
| V magnitude | |||||||||||||||||
| R magnitude | 16.10 | ||||||||||||||||
| I magnitude | |||||||||||||||||
| J magnitude | 16.27 (0.01) | 16.24 (0.08) | 16.24 | 16.24 (0.08) | 16.24 (0.08) | ||||||||||||
| H magnitude | 16.41 (0.2) | 16.41 (0.2) | 16.41 | 16.41 (0.2) | 16.41 (0.2) | ||||||||||||
| K magnitude | 15.75 (0.03) | 15.75 | 15.75 | ||||||||||||||
| u magnitude | 17.37 (0.01) | 17.34 (0.01) | 17.38 (0.01) | 17.36 (0.01) | 17.34 (0.01) | ||||||||||||
| g magnitude | 16.70 (0.005) | 16.70 (0.005) | 16.64 (0.003) | 16.62 (0.004) | |||||||||||||
| r magnitude | 16.56 (0.005) | (0.005) | 16.57 (0.003) | 16.55 (0.004) | |||||||||||||
| i magnitude | 16.65 (0.006) | 16.64 (0.006) | 16.69 (0.006) | 16.60 (0.004) | |||||||||||||
| z magnitude | 16.79 (0.01) | 16.79 (0.01) | 16.81 (0.003) | 16.75 (0.01) | |||||||||||||
| G magnitude | 16.55 (0.004) | 16.57 | 16.55 | 16.55 (0.003) | 16.57 | ||||||||||||
| BP magnitude | 16.69 (0.004) | 16.71 | 16.71 | ||||||||||||||
| RP magnitude | 16.34 (0.004) | 16.35 | 16.35 | ||||||||||||||
| Pan g magnitude | 16.64 (0.004) | 16.64 (0.003) | 16.64 (0.003) | ||||||||||||||
| Pan r magnitude | 16.57 (0.003) | 16.57 (0.003) | 16.57 (0.003) | ||||||||||||||
| Pan i magnitude | 16.69 (0.005) | 16.69 (0.006) | 16.68 (0.006) | ||||||||||||||
| Pan z magnitude | 16.81 (0.004) | 16.81 (0.003) | 16.81 (0.003) | ||||||||||||||
| Pan y magnitude | 16.87 (0.005) | 16.87 (0.007) | 16.87 (0.007) | ||||||||||||||
| 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.