All names: Gaia DR2 1782635663788860416, Gaia DR3 1782635663788860416, TIC 354614246, GALEX J215946.3+215859, LAMOST J215946.31+215859.7, 2MASS J21594632+2158586, SDSSJ215946.33+215858.5, SDSS J215946.33+215858.55, Gaia EDR3 1782635663788860416, SDSS J215946.33+215858.5, SDSS J215946.33+215858.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 59 46.33 (0.06) | 21 59 46.33 | 21 59 46.33 | 21 59 46.33 (0.1) | 21 59 46.33 (0.06) | ||||
| Declination | 21 58 58.48 (0.05) | 21 58 58.55 | 21 58 58.50 | 21 58 58.48 (0.1) | 21 58 58.64 (0.05) | ||||
| Spectral type | sdB | A/DAZ | sdB1.5He2 | ||||||
| Effective temperature | [K] | 31150.0 (135) | |||||||
| log(g) | [cgs] | 5.43 (0.03) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.52 (0.07) | 0.78 (0.1) | 0.78 (0.1) | 0.52 (0.07) | ||||
| Distance | [pc] | 1915.88 (248) | 1284.19 (201) | 1284.11 (201) | 1915.71 (248) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -3.777594983 (0.06) | -3.975 (0.2) | -3.975197687 (0.2) | -3.778 (0.06) | ||||
| Proper motion (declination) | [mas/yr] | -10.18216263 (0.06) | -10.068 (0.2) | -10.06763542 (0.2) | -10.182 (0.06) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.23 (0.1) | 16.23 (0.1) | |||||||
| H magnitude | 15.61 | ||||||||
| K magnitude | 15.40 | ||||||||
| u magnitude | 15.78 (0.005) | 15.78 (0.005) | 15.81 (0.02) | 15.78 (0.005) | |||||
| g magnitude | 15.92 (0.004) | 15.92 (0.004) | 15.95 (0.01) | 15.92 (0.004) | |||||
| r magnitude | 16.25 (0.004) | 16.25 (0.004) | 16.25 (0.03) | 16.25 (0.004) | |||||
| i magnitude | 16.46 (0.005) | 16.46 (0.005) | 16.46 (0.01) | 16.46 (0.005) | |||||
| z magnitude | 16.62 (0.009) | 16.62 (0.009) | 16.62 (0.02) | 16.62 (0.009) | |||||
| G magnitude | 16.08 (0.002) | 16.10 (0.002) | 16.10 | 16.08 (0.003) | |||||
| BP magnitude | 16.01 (0.002) | 15.96 (0.01) | 15.96 | ||||||
| RP magnitude | 16.15 (0.004) | 16.14 (0.01) | 16.14 | ||||||
| Pan g magnitude | 15.99 (0.004) | 15.99 (0.004) | |||||||
| Pan r magnitude | 16.26 (0.002) | 16.26 (0.002) | |||||||
| Pan i magnitude | 16.47 (0.003) | 16.47 (0.003) | |||||||
| Pan z magnitude | 16.64 (0.004) | 16.64 (0.004) | |||||||
| Pan y magnitude | 16.73 (0.01) | 16.73 (0.01) | |||||||
| E(B-V) | 0.057 | ||||||||
* 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.