All names: Gaia DR3 1017988509933879680, GALEX J092950.2+493613, SBSS 0926+498, Gaia DR2 1017988509933879680, Gaia EDR3 1017988509933879680, SDSS J092950.10+493614.7, SDSS J092950.11+493614.7, WD 0926+498
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 29 50.11 (0.05) | 09 29 50.11 | 09 29 50.11 (0.07) | 09 29 50.11 | 09 29 50.11 (0.05) | 09 29 49.22 | |||
| Declination | 49 36 14.73 (0.05) | 49 36 14.78 | 49 36 14.73 (0.06) | 49 36 14.73 | 49 36 14.79 (0.05) | 49 36 14.04 | |||
| Spectral type | DB | DB | DB | DB | |||||
| Effective temperature | [K] | 14372.0 (302) | |||||||
| log(g) | [cgs] | 7.94 (0.03) | |||||||
| Mass | [M☉] | 0.553 (0.02) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 6.66 (0.07) | 6.86 (0.1) | 6.66 | 6.66 (0.07) | ||||
| Distance | [pc] | 150.25 (2) | 145.83 (2) | 150.25 | 150.25 (2) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -0.492784726 (0.06) | -0.429022261 (0.1) | -0.493 (0.06) | |||||
| Proper motion (declination) | [mas/yr] | -3.597268059 (0.06) | -3.622559418 (0.1) | -3.597 (0.06) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 17.00 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 16.93 (0.008) | 16.94 (0.008) | |||||||
| g magnitude | 17.00 (0.004) | 17.00 (0.004) | |||||||
| r magnitude | 17.31 (0.005) | 17.31 (0.005) | |||||||
| i magnitude | 17.55 (0.007) | 17.55 (0.007) | |||||||
| z magnitude | 17.76 (0.02) | 17.76 (0.02) | |||||||
| G magnitude | 17.14 (0.005) | 17.17 | 17.14 | 17.14 (0.003) | |||||
| BP magnitude | 17.09 (0.005) | 17.05 | |||||||
| RP magnitude | 17.25 (0.009) | 17.22 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.009 | ||||||||
* 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.