All names: GALEX J225648.7-330825, EC 22540-3324, UCAC4 285-222435, 2MASS J22564883-3308254, Gaia DR3 6602969028791558016, TIC 206688085, WISE J225648.82-330825.7, Gaia DR2 6602969028791558016, GALEXJ22568-3308
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 56 48.79 | 22 56 48.82 (0.01) | ||
| Declination | -33 08 25.98 | -33 08 25.78 (0.01) | ||
| Spectral type | sdB+F | sdB/sdOB? | ||
| 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] | 0.64 (0.04) | 0.66 (0.02) | |
| Distance | [pc] | 1561.52 (88) | 1520.45 (38) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 10.666 (0.07) | 10.814 (0.01) | |
| Proper motion (declination) | [mas/yr] | -8.015 (0.06) | -7.991 (0.01) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.05 (0.01) | |||
| V magnitude | 13.86 (0.01) | |||
| R magnitude | 14.01 (0.06) | |||
| I magnitude | ||||
| J magnitude | 12.87 (0.02) | 12.87 (0.02) | ||
| H magnitude | 12.51 (0.03) | 12.51 (0.03) | ||
| K magnitude | 12.39 (0.03) | 12.39 (0.03) | ||
| u magnitude | ||||
| g magnitude | 13.89 (0.01) | |||
| r magnitude | 13.82 (0.01) | |||
| i magnitude | 13.80 (0.01) | |||
| z magnitude | ||||
| G magnitude | 13.77 (0.003) | 13.74 (0.003) | ||
| BP magnitude | 13.90 (0.009) | |||
| RP magnitude | 13.46 (0.009) | |||
| Pan g magnitude | 14.45 | |||
| Pan r magnitude | 14.00 | |||
| Pan i magnitude | 13.80 (0.005) | |||
| Pan z magnitude | 13.80 | |||
| Pan y magnitude | 13.78 | |||
| E(B-V) | 0.011 | |||
* 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.