All names: EC22374-3419, GALEX J224016.7-340328, Gaia DR2 6597556579724894592, 2MASS J22401685-3403285, Gaia DR3 6597556579724894592, TIC 70451188, EC 22374-3419, WISE J224016.83-340328.5
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 40 16.71 | 22 40 16.84 (0.01) | ||
| Declination | -34 03 27.72 | -34 03 28.55 (0.02) | ||
| Spectral type | sdB+F | sdB+F | ||
| 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] | 0.72 (0.03) | 0.74 (0.02) | |
| Distance | [pc] | 1395.48 (62) | 1350.99 (41) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.909 (0.05) | -1.767 (0.02) | |
| Proper motion (declination) | [mas/yr] | -9.71 (0.05) | -9.826 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | 14.47 (0.2) | |||
| I magnitude | ||||
| J magnitude | 13.69 (0.03) | 13.69 (0.03) | ||
| H magnitude | 13.46 (0.03) | 13.46 (0.03) | ||
| K magnitude | 13.43 (0.04) | 13.43 (0.04) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.22 (0.0004) | 14.21 (0.003) | ||
| BP magnitude | 14.26 (0.004) | |||
| RP magnitude | 14.03 (0.001) | |||
| Pan g magnitude | 14.66 | |||
| Pan r magnitude | 14.46 | |||
| Pan i magnitude | 14.35 (0.0005) | |||
| Pan z magnitude | 14.47 | |||
| Pan y magnitude | 14.50 | |||
| 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.