All names: WD 0829+090, Gaia DR2 599575617751905792, GALEX J083157.4+085510, Gaia DR3 599575617751905792, Gaia EDR3 599575617751905792, SDSS J083157.42+085509.9, SDSS J083157.42+085509.7, SDSS J083157.42+085509.8
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 31 57.42 (0.7) | 08 31 57.43 | 08 31 57.42 (1) | 08 31 57.43 (0.7) | 08 31 57.43 | 08 31 57.12 | 08 31 57.42 | |||
| Declination | 08 55 09.71 (0.5) | 08 55 09.79 | 08 55 09.72 (0.7) | 08 55 09.85 (0.5) | 08 55 09.87 | 08 55 05.88 | 08 55 09.87 | |||
| Spectral type | DA | DA_auto | DA | DA | DA | |||||
| Effective temperature | [K] | 21818.0 (1001) | 21557.0 (1014) | |||||||
| log(g) | [cgs] | 7.69 (0.2) | 7.73 (0.2) | |||||||
| Mass | [M☉] | 0.502 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.10 (0.9) | 0.95 (1) | 2.10 (0.9) | ||||||
| Distance | [pc] | 475.09 (199) | 1047.33 (1637) | 475.08 (199) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -1.209840093 (0.9) | -2.999015978 (2) | -1.21 (0.9) | ||||||
| Proper motion (declination) | [mas/yr] | -8.763848019 (0.7) | -8.209578905 (2) | -8.764 (0.7) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.27 (0.04) | 20.28 (0.04) | 20.37 (0.04) | 20.36 | 20.39 (0.05) | |||||
| g magnitude | 20.32 (0.02) | 20.31 (0.02) | 20.33 (0.03) | 20.32 | 20.36 (0.03) | |||||
| r magnitude | 20.65 (0.03) | 20.67 (0.03) | 20.66 (0.03) | 20.65 | 20.67 (0.03) | |||||
| i magnitude | 20.87 (0.05) | 20.88 (0.05) | 20.83 (0.06) | 20.82 | 20.84 (0.06) | |||||
| z magnitude | 21.83 (0.3) | 21.61 (0.4) | 21.59 (0.4) | 21.58 | 21.59 (0.4) | |||||
| G magnitude | 20.50 (0.09) | 20.55 | 20.50 (0.009) | |||||||
| BP magnitude | 20.31 (0.09) | 20.42 | ||||||||
| RP magnitude | 20.80 (0.1) | 20.52 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.025 | |||||||||
* 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.