All names: GALEX J221052.8-190150, 2MASS J22105286-1901497, EC22081-1916, UCAC4 355-201145, Gaia DR3 6822231953975577600, UCAC2 24496754, Gaia DR2 6822231953975577600, EC 22081-1916, WISEA J221052.85-190150.1, TIC 206535600, WISE J221052.85-190149.9
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 10 52.90 | 22 10 52.87 (0.06) | ||
| Declination | -19 01 50.00 | -19 01 49.63 (0.05) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 31100.0 (1100) | ||
| log(g) | [cgs] | 4.77 (0.1) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.92 (0.09) | 0.98 (0.07) | |
| Distance | [pc] | 1083.66 (102) | 1022.60 (71) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 17.859 (0.1) | 17.492 (0.07) | |
| Proper motion (declination) | [mas/yr] | -11.331 (0.1) | -12.311 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.82 (0.03) | |||
| V magnitude | 12.94 (0.01) | |||
| R magnitude | 13.30 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.21 (0.03) | 13.21 (0.03) | ||
| H magnitude | 13.15 (0.04) | 13.15 (0.04) | ||
| K magnitude | 13.25 (0.04) | 13.25 (0.04) | ||
| u magnitude | ||||
| g magnitude | 12.80 (0.02) | |||
| r magnitude | 13.12 (0.01) | |||
| i magnitude | 13.37 (0.03) | |||
| z magnitude | ||||
| G magnitude | 12.94 (0.001) | 12.92 (0.003) | ||
| BP magnitude | 12.76 (0.009) | |||
| RP magnitude | 13.12 (0.003) | |||
| Pan g magnitude | 12.94 | |||
| Pan r magnitude | 13.22 | |||
| Pan i magnitude | 13.45 | |||
| Pan z magnitude | 13.68 (0.005) | |||
| Pan y magnitude | 13.83 (0.009) | |||
| E(B-V) | 0.021 | |||
* 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.