All names: FB 84, Gaia DR2 4030494071885425536, UCAC4 636-048050, Balloon 113233004, TIC 21599042, FBS B 87, Gaia EDR3 4030494071885425536, CBS 157, FBS 1206+373, 2MASS J12085745+3702578, PG 1206+373, PG1206+373, GALEX J120857.4+370258, Gaia DR3 4030494071885425536, HZ 18
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 08 57.43 (0.04) | 12 08 57.49 | 12 08 57.46 (0.04) | ||
| Declination | 37 02 57.96 (0.04) | 37 03 00.59 | 37 02 58.12 (0.04) | ||
| Spectral type | sdB | 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] | 0.59 (0.05) | 0.60 (0.07) | 0.59 (0.05) | |
| Distance | [pc] | 1684.35 (137) | 1677.57 (196) | 1684.35 (137) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -18.363 (0.04) | -17.963 (0.1) | -18.363 (0.04) | |
| Proper motion (declination) | [mas/yr] | -9.912 (0.04) | -9.908 (0.1) | -9.912 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.26 (0.02) | ||||
| V magnitude | 15.38 (0.01) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.18 (0.09) | 16.18 (0.09) | |||
| H magnitude | 16.27 (0.2) | 16.27 (0.2) | |||
| K magnitude | 17.31 | ||||
| u magnitude | 15.03 (0.004) | ||||
| g magnitude | 15.33 (0.003) | 15.13 (0.01) | |||
| r magnitude | 15.82 (0.004) | 15.36 (0.01) | |||
| i magnitude | 16.18 (0.004) | 15.32 (0.01) | |||
| z magnitude | 16.53 (0.008) | ||||
| G magnitude | 15.56 (0.003) | 15.57 (0.0009) | 15.56 (0.003) | ||
| BP magnitude | 15.41 (0.004) | 15.35 (0.01) | |||
| RP magnitude | 15.86 (0.006) | 15.85 (0.007) | |||
| Pan g magnitude | 15.37 (0.006) | ||||
| Pan r magnitude | 15.82 (0.007) | ||||
| Pan i magnitude | 16.20 (0.003) | ||||
| Pan z magnitude | 16.48 (0.004) | ||||
| Pan y magnitude | 16.67 (0.006) | ||||
| E(B-V) | 0.019 | ||||
* 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.