All names: Gaia DR3 578180629007933056, Gaia EDR3 578180629007933056, GALEX J085944.7+024823, SDSS J085944.75+024822.8, Gaia DR2 578180629007933056, WD 0857+030, SDSS J085944.76+024822.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | 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 59 44.75 (0.9) | 08 59 44.75 | 08 59 44.75 (2) | 08 59 44.76 (0.9) | 08 59 44.76 | 08 59 44.16 | 08 59 44.76 | ||||
| Declination | 02 48 22.82 (0.5) | 02 48 22.83 | 02 48 22.82 (0.7) | 02 48 22.88 (0.5) | 02 48 22.83 | 02 48 16.20 | 02 48 22.81 | ||||
| Spectral type | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 13173.0 (668) | 13487.0 (740) | ||||||||
| log(g) | [cgs] | 7.80 (0.2) | 7.85 (0.2) | ||||||||
| Mass | [M☉] | 0.533 (0.09) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.43 (1) | 5.66 (2) | 2.43 (1) | |||||||
| Distance | [pc] | 411.55 (243) | 176.57 (65) | 411.54 (243) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -9.089953355 (2) | -6.181704575 (3) | -9.09 (2) | 1.4 | ||||||
| Proper motion (declination) | [mas/yr] | -3.525466331 (0.9) | -5.613524498 (2) | -3.525 (0.9) | 7.3 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.59 (0.06) | 20.61 (0.07) | 20.62 (0.06) | 20.62 | 20.60 (0.06) | ||||||
| g magnitude | 20.24 (0.02) | 20.25 (0.02) | 20.28 (0.03) | 20.27 | 20.28 (0.03) | ||||||
| r magnitude | 20.46 (0.03) | 20.47 (0.04) | 20.49 (0.04) | 20.49 (0.04) | |||||||
| i magnitude | 20.85 (0.06) | 20.86 (0.06) | 20.87 (0.07) | 20.87 (0.07) | |||||||
| z magnitude | 21.26 (0.3) | 21.30 (0.3) | 21.28 (0.3) | 21.27 (0.3) | |||||||
| G magnitude | 20.39 (0.1) | 20.46 | 20.39 (0.008) | ||||||||
| BP magnitude | 20.54 (0.1) | 20.55 | |||||||||
| RP magnitude | 20.33 (0.1) | 20.68 | |||||||||
| Pan g magnitude | 20.30 (0.02) | ||||||||||
| Pan r magnitude | 20.50 (0.03) | ||||||||||
| Pan i magnitude | 20.79 (0.02) | ||||||||||
| Pan z magnitude | 20.88 (0.1) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.035 | ||||||||||
* 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.