All names: Gaia DR2 3834790240615842560, WD 0954+022, Gaia EDR3 3834790240615842560, GALEX J095648.6+020205, Gaia DR3 3834790240615842560, SDSS J095648.55+020205.6, SDSS J095648.54+020205.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 56 48.58 (0.6) | 09 56 48.55 | 09 56 48.55 (0.6) | 09 56 48.55 | 09 56 48.05 | 09 56 48.55 | 09 56 48.55 | ||||
| Declination | 02 02 04.97 (0.6) | 02 02 05.67 | 02 02 05.61 (0.6) | 02 02 05.65 | 02 01 59.88 | 02 02 05.64 | 02 02 05.64 | ||||
| Spectral type | DA6.5 | DA | DA6.0 | DA | DA | ||||||
| Effective temperature | [K] | 8340.0 (105) | 8165.0 (112) | 8380.0 (100) | |||||||
| log(g) | [cgs] | 8.09 (0.2) | 7.84 (0.2) | 8.19 (0.2) | |||||||
| Mass | [M☉] | 0.513 (0.1) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.35 (0.5) | 4.35 (0.5) | ||||||||
| Distance | [pc] | 229.68 (25) | 229.68 (25) | ||||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 26.70218552 (0.6) | 26.702 (0.6) | 19.7 | 19.0 | ||||||
| Proper motion (declination) | [mas/yr] | -39.73333026 (0.6) | -39.733 (0.6) | -53.4 | -53.0 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.22 (0.05) | 20.22 (0.06) | 20.23 (0.06) | 20.20 | 20.21 (0.05) | 20.20 (0.05) | |||||
| g magnitude | 19.83 (0.02) | 19.84 (0.02) | 19.87 (0.03) | 19.87 | 19.86 (0.03) | 19.87 (0.03) | |||||
| r magnitude | 19.76 (0.02) | 19.76 (0.02) | 19.78 (0.02) | 19.78 | 19.76 (0.02) | 19.78 (0.02) | |||||
| i magnitude | 19.78 (0.03) | 19.77 (0.03) | 19.79 (0.03) | 19.79 | 19.78 (0.03) | 19.79 (0.03) | |||||
| z magnitude | 20.05 (0.1) | 19.99 (0.1) | 20.01 (0.1) | 20.01 | 20.02 (0.1) | 20.01 (0.1) | |||||
| G magnitude | 19.70 (0.07) | 19.70 (0.005) | |||||||||
| BP magnitude | 19.86 (0.07) | ||||||||||
| RP magnitude | 19.52 (0.08) | ||||||||||
| Pan g magnitude | 19.78 (0.009) | ||||||||||
| Pan r magnitude | 19.74 (0.01) | ||||||||||
| Pan i magnitude | 19.77 (0.02) | ||||||||||
| Pan z magnitude | 19.87 (0.02) | ||||||||||
| Pan y magnitude | 19.91 (0.02) | ||||||||||
| E(B-V) | 0.018 | ||||||||||
* 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.