All names: 2MASS J21451066-3217185, Gaia DR2 6592736629986454016, EC21422-3231, Gaia DR3 6592736629986454016, GALEX J214510.6-321718, UCAC4 289-214641, EC 21422-3231
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 45 10.64 | 21 45 10.68 (0.04) | ||
| Declination | -32 17 18.67 | -32 17 18.57 (0.03) | ||
| 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] | 0.75 (0.09) | 0.58 (0.05) | |
| Distance | [pc] | 1325.03 (161) | 1728.31 (162) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.903 (0.1) | -3.463 (0.05) | |
| Proper motion (declination) | [mas/yr] | -5.095 (0.09) | -5.065 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.03 (0.04) | |||
| V magnitude | 16.16 (0.01) | |||
| R magnitude | 16.09 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.80 (0.06) | 15.80 (0.06) | ||
| H magnitude | 15.34 (0.08) | 15.34 (0.08) | ||
| K magnitude | 15.16 (0.1) | 15.16 (0.1) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.06 (0.002) | 16.04 (0.003) | ||
| BP magnitude | 15.95 (0.009) | |||
| RP magnitude | 16.05 (0.004) | |||
| Pan g magnitude | 16.68 | |||
| Pan r magnitude | 16.46 | |||
| Pan i magnitude | 16.37 (0.008) | |||
| Pan z magnitude | 16.47 | |||
| Pan y magnitude | 16.49 | |||
| E(B-V) | 0.026 | |||
* 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.