All names: EC22474-2644, GALEX J225010.7-262811, PHL 2070, EC 22474-2644, Gaia DR3 6611005595501745152, TIC 47467538, 2MASS J22501076-2628108, HBQS 2247-2644, Ton S 76, Gaia DR2 6611005595501745152
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 50 10.80 | 22 50 10.77 (0.03) | ||
| Declination | -26 28 10.52 | -26 28 10.87 (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] | 0.20 (0.08) | 0.21 (0.05) | |
| Distance | [pc] | 5058.17 (1927) | 4708.10 (1015) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.497 (0.1) | 2.351 (0.04) | |
| Proper motion (declination) | [mas/yr] | -4.17 (0.1) | -4.373 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.72 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.30 (0.1) | 16.30 (0.1) | ||
| H magnitude | 16.05 (0.2) | 16.05 (0.2) | ||
| K magnitude | 16.26 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.87 (0.002) | 15.85 (0.003) | ||
| BP magnitude | 15.72 (0.009) | |||
| RP magnitude | 16.03 (0.006) | |||
| Pan g magnitude | 15.72 (0.003) | |||
| Pan r magnitude | 16.06 (0.004) | |||
| Pan i magnitude | 16.36 (0.003) | |||
| Pan z magnitude | 16.59 (0.006) | |||
| Pan y magnitude | 16.72 (0.009) | |||
| E(B-V) | 0.012 | |||
* 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.