All names: PHL 261, SDSS J222552.31-095957.5, BPSCS22886-65, Gaia EDR3 2614970943881648640, GALEX J222552.3-095956, USNO-B1.0 0800-00659198, Gaia DR3 2614970943881648640, Gaia DR2 2614970943881648640, BPS CS 22886-0065
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 22 25 52.31 (0.06) | 22 25 52.30 | 22 25 52.31 (0.06) | ||
| Declination | -09 59 57.97 (0.05) | -09 59 56.46 | -09 59 57.60 (0.05) | ||
| 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] | 0.38 (0.07) | 0.30 (0.1) | 0.38 (0.07) | |
| Distance | [pc] | 2621.92 (453) | 3373.82 (1385) | 2621.92 (453) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 0.932 (0.08) | 1.038 (0.2) | 0.932 (0.08) | |
| Proper motion (declination) | [mas/yr] | -22.836 (0.08) | -22.74 (0.2) | -22.836 (0.08) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.60 | ||||
| V magnitude | 16.40 | ||||
| R magnitude | 16.40 | ||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | 15.85 (0.005) | 15.88 (0.02) | |||
| g magnitude | 16.13 (0.003) | 16.16 (0.01) | |||
| r magnitude | 16.62 (0.004) | 16.63 (0.02) | |||
| i magnitude | 16.94 (0.005) | 16.95 (0.01) | |||
| z magnitude | 17.25 (0.01) | 17.27 (0.03) | |||
| G magnitude | 16.38 (0.003) | 16.41 (0.002) | 16.38 (0.003) | ||
| BP magnitude | 16.25 (0.006) | 16.20 (0.01) | |||
| RP magnitude | 16.65 (0.007) | 16.65 (0.007) | |||
| Pan g magnitude | 16.22 (0.004) | ||||
| Pan r magnitude | 16.63 (0.004) | ||||
| Pan i magnitude | 16.99 (0.006) | ||||
| Pan z magnitude | 17.25 (0.01) | ||||
| Pan y magnitude | 17.45 (0.005) | ||||
| E(B-V) | 0.055 | ||||
* 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.