All names: V* GH Leo, TIC 171630076, TON 527, Gaia DR2 722446385752579840, WDJ103349.20+230916.26, Ton 527, ATO J158.4547+23.1544, PG 1031+234, WD 1031+234, 2MASS J10334917+2309161, SDSS J103349.18+230916.2, GALEX J103349.1+230915, Gaia DR3 722446385752579840, Gaia EDR3 722446385752579840, CRTS J103349.1+230916
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Hardy et al. 2023a | MWDD H | Gaia DR2 | Stilism | Ferrario et al. 2015 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 33 49.14 (0.04) | 10 33 49.14 (0.06) | 10 33 49.14 | 10 33 49.20 (0.04) | 10 33 49.14 | 10 33 49.46 | |||||||
| Declination | 23 09 16.07 (0.03) | 23 09 16.07 (0.05) | 23 09 16.07 | 23 09 16.25 (0.03) | 23 09 16.07 | 23 09 12.24 | |||||||
| Spectral type | DAH | DA | DA | DB | DAP2 | DAP2 | |||||||
| Effective temperature | [K] | 26025.0 (1171) | 17582.0 | 15000.0 | 15000.0 (1022) | 21626.0 (712) | |||||||
| log(g) | [cgs] | 8.77 (0.2) | 8.41 | 8.50 (0.3) | 8.68 (0.02) | ||||||||
| Mass | [M☉] | 1.0968991385224958 (0.2) | 0.872 | 0.93 (0.2) | 1.021 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -2.43 | |||||||||||
| Cooling age | [Gyr] | 0.2434 | 0.5495 | ||||||||||
| 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] | 15.54 (0.04) | 15.60 (0.07) | 15.54 | 15.54 (0.04) | 15.60 (0.07) | |||||||
| Distance | [pc] | 64.36 (0.2) | 64.09 (0.3) | 58.00 | 64.36 | 64.36 (0.2) | 64.09 (0.3) | ||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -51.38831344 (0.04) | -51.25805508 (0.1) | -51.388 (0.04) | -51.25805508 | ||||||||
| Proper motion (declination) | [mas/yr] | -11.8210123 (0.04) | -11.8440961 (0.1) | -11.821 (0.04) | -11.8440961 | ||||||||
| Variability | |||||||||||||
| Magnetic | yes | yes | yes | ||||||||||
| Bd | [MG] | 230.49321880066128 | 600 (500) | ||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 15.30 | ||||||||||||
| V magnitude | 15.84 | 15.73 | |||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 16.04 (0.009) | ||||||||||||
| H magnitude | 16.11 (0.02) | ||||||||||||
| K magnitude | 16.12 (0.05) | ||||||||||||
| u magnitude | 15.29 (0.005) | 15.38 (0.004) | |||||||||||
| g magnitude | 15.48 (0.004) | 15.56 (0.003) | |||||||||||
| r magnitude | 15.86 (0.005) | 15.89 (0.003) | |||||||||||
| i magnitude | 16.16 (0.005) | 16.16 (0.004) | |||||||||||
| z magnitude | 16.47 (0.008) | 16.45 (0.009) | |||||||||||
| G magnitude | 15.65 (0.02) | 15.66 | 15.65 | 15.65 (0.005) | 15.66 | ||||||||
| BP magnitude | 15.55 (0.02) | 15.51 | 15.51 | ||||||||||
| RP magnitude | 15.83 (0.01) | 15.84 | 15.84 | ||||||||||
| Pan g magnitude | 15.54 (0.009) | ||||||||||||
| Pan r magnitude | 15.89 (0.005) | ||||||||||||
| Pan i magnitude | 16.20 (0.01) | ||||||||||||
| Pan z magnitude | 16.42 (0.005) | ||||||||||||
| Pan y magnitude | 16.55 (0.007) | ||||||||||||
| 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.