All names: GALEX J022035.7-254022, 2MASS J02203574-2540233, Gaia DR2 5119475195765809664, EC 02183-2554, Gaia DR3 5119475195765809664, TIC 72763826, EC02183-2554, UCAC4 322-002335
| Parameter | Unit | Geier 2020 | Simbad |
|---|---|---|---|
| Right ascension | 02 20 35.70 | 02 20 35.75 (0.03) | |
| Declination | -25 40 22.51 | -25 40 23.23 (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] | -0.01 (0.09) | 0.08 (0.06) |
| Distance | [pc] | 13157.89 (9591) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 0.461 (0.1) | 0.625 (0.04) |
| Proper motion (declination) | [mas/yr] | -2.008 (0.1) | -1.811 (0.05) |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 15.78 (0.05) | ||
| V magnitude | 15.88 (0.03) | ||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 16.29 (0.1) | 16.29 (0.1) | |
| H magnitude | 16.07 (0.2) | 16.07 (0.2) | |
| K magnitude | 15.02 | ||
| u magnitude | |||
| g magnitude | 15.70 (0.04) | ||
| r magnitude | 16.08 (0.03) | ||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 15.85 (0.001) | 15.83 (0.003) | |
| BP magnitude | 15.73 (0.006) | ||
| RP magnitude | 15.99 (0.006) | ||
| Pan g magnitude | 15.68 (0.007) | ||
| Pan r magnitude | 16.02 (0.006) | ||
| Pan i magnitude | 16.33 (0.002) | ||
| Pan z magnitude | 16.53 (0.003) | ||
| Pan y magnitude | 16.65 (0.004) | ||
| E(B-V) | |||
* 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.