All names: Gaia DR3 915244306574180608, FBS 0828+425, FBS0828+425, FBS B 254, SDSS J083127.36+422201.8, Gaia DR2 915244306574180608, 2MASS J08312737+4222017, GALEX J083127.3+422202, TIC 67935496
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 31 27.31 | 08 31 27.37 (0.02) | ||
| Declination | 42 22 02.80 | 42 22 01.94 (0.01) | ||
| Spectral type | sd | sdB | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.22 (0.05) | 0.35 (0.02) | |
| Distance | [pc] | 4464.29 (945) | 2839.30 (191) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.137 (0.08) | 1.234 (0.02) | |
| Proper motion (declination) | [mas/yr] | -19.97 (0.05) | -20.007 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.72 | |||
| V magnitude | 13.79 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.85 (0.03) | 13.85 (0.03) | ||
| H magnitude | 13.88 (0.04) | 13.88 (0.04) | ||
| K magnitude | 13.99 (0.07) | 13.99 (0.07) | ||
| u magnitude | 14.34 (0.004) | 14.34 (0.004) | ||
| g magnitude | 16.01 (0.01) | |||
| r magnitude | 13.87 (0.003) | 13.87 (0.003) | ||
| i magnitude | 14.10 (0.004) | 14.10 (0.004) | ||
| z magnitude | 14.07 (0.004) | 14.07 (0.004) | ||
| G magnitude | 13.75 (0.0004) | 13.73 (0.003) | ||
| BP magnitude | 13.70 (0.004) | |||
| RP magnitude | 13.77 (0.002) | |||
| Pan g magnitude | 13.62 (0.01) | |||
| Pan r magnitude | 13.88 (0.003) | |||
| Pan i magnitude | 14.11 (0.002) | |||
| Pan z magnitude | 14.29 (0.005) | |||
| Pan y magnitude | 14.35 (0.005) | |||
| E(B-V) | 0.032 | |||
* 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.