All names: Gaia EDR3 816210637129568768, WD 0912+426, SDSS J091543.65+422344.1, SDSS J091543.65+422344.10, Gaia DR2 816210637129568768, Gaia DR3 816210637129568768, USNO-A2.0 1275-07478320, GALEX J091543.6+422345, SDSS J091543.64+422344.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 15 43.63 (0.7) | 09 15 43.63 (0.8) | 09 15 43.65 (0.7) | 09 15 43.65 | 09 15 43.30 | 09 15 43.65 | ||||
| Declination | 42 23 44.01 (0.4) | 42 23 44.01 (0.6) | 42 23 44.14 (0.4) | 42 23 44.10 | 42 23 41.28 | 42 23 44.11 | ||||
| Spectral type | DB | DB | DB | DBA: | ||||||
| Effective temperature | [K] | 17176.0 | 16761.0 (518) | 16634.0 (604) | ||||||
| log(g) | [cgs] | 8.49 | 8.17 (0.3) | 8.22 (0.3) | ||||||
| Mass | [M☉] | 0.901 | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | -5.107 | |||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 0.71 (0.7) | 0.15 (1) | 0.71 (0.7) | ||||||
| Distance | [pc] | 1407.34 (1432) | 6868.13 (45091) | 1407.26 (1432) | ||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -13.39910394 (1) | -13.814 (2) | -13.399 (1) | -7.9 | |||||
| Proper motion (declination) | [mas/yr] | -8.119503672 (0.6) | -8.822 (1) | -8.12 (0.6) | -1.4 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 19.20 (0.3) | |||||||||
| V magnitude | ||||||||||
| R magnitude | 19.40 (0.3) | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.19 (0.04) | 20.21 (0.04) | 20.21 | 20.20 (0.04) | ||||||
| g magnitude | 20.32 (0.02) | 20.33 (0.02) | 20.33 | 20.33 (0.02) | ||||||
| r magnitude | 20.61 (0.03) | 20.62 (0.03) | 20.62 | 20.62 (0.03) | ||||||
| i magnitude | 20.81 (0.05) | 20.84 (0.05) | 20.84 | 20.84 (0.05) | ||||||
| z magnitude | 21.07 (0.3) | 21.05 (0.2) | 21.05 | 21.03 (0.2) | ||||||
| G magnitude | 20.45 (0.1) | 20.52 | 20.45 (0.008) | |||||||
| BP magnitude | 20.45 (0.1) | 20.27 | ||||||||
| RP magnitude | 20.67 (0.1) | 20.41 | ||||||||
| Pan g magnitude | 20.35 (0.01) | |||||||||
| Pan r magnitude | 20.60 (0.02) | |||||||||
| Pan i magnitude | 20.85 (0.03) | |||||||||
| Pan z magnitude | 20.85 (0.1) | |||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.022 | |||||||||
* 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.