All names: GALEX J225537.3-553539, 2MASS J22553742-5535401, UCAC4 173-217193, EC 22525-5551, TIC 220488806, EC22525-5551, Gaia DR2 6506031032807153152, Gaia DR3 6506031032807153152
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 55 37.38 | 22 55 37.43 (0.02) | ||
| Declination | -55 35 39.62 | -55 35 39.96 (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] | 0.59 (0.06) | 0.47 (0.04) | |
| Distance | [pc] | 1700.39 (166) | 2138.58 (168) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 7.589 (0.07) | 7.649 (0.03) | |
| Proper motion (declination) | [mas/yr] | -8.342 (0.08) | -8.354 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.67 (0.02) | |||
| V magnitude | 14.87 (0.02) | |||
| R magnitude | 15.22 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.68 (0.09) | 15.68 (0.09) | ||
| H magnitude | 15.68 (0.2) | 15.68 (0.2) | ||
| K magnitude | 15.54 (0.2) | 15.54 (0.2) | ||
| u magnitude | ||||
| g magnitude | 14.72 (0.03) | |||
| r magnitude | 15.13 (0.04) | |||
| i magnitude | 15.65 (0.01) | |||
| z magnitude | ||||
| G magnitude | 14.88 (0.0006) | 14.87 (0.003) | ||
| BP magnitude | 14.64 (0.007) | |||
| RP magnitude | 15.18 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.013 | |||
* 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.