All names: TIC 273366457, EC22362-7240, GALEX J224004.8-722451, UCAC4 088-069901, Gaia DR2 6382501210663137408, 2MASS J22400493-7224522, EC 22362-7240, Gaia DR3 6382501210663137408
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 22 40 04.86 | 22 40 04.96 (0.02) | ||
| Declination | -72 24 51.66 | -72 24 52.01 (0.02) | ||
| Spectral type | sdB | B/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] | 0.16 (0.04) | 0.22 (0.03) | |
| Distance | [pc] | 6313.13 (1706) | 4446.42 (565) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.802 (0.07) | -4.846 (0.03) | |
| Proper motion (declination) | [mas/yr] | -5.392 (0.07) | -5.431 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.38 (0.01) | |||
| V magnitude | 15.54 (0.02) | |||
| R magnitude | 15.62 (0.07) | |||
| I magnitude | ||||
| J magnitude | 15.72 (0.06) | 15.72 (0.06) | ||
| H magnitude | 15.86 (0.2) | 15.86 (0.2) | ||
| K magnitude | 16.10 | |||
| u magnitude | ||||
| g magnitude | 15.34 (0.01) | |||
| r magnitude | 15.70 (0.02) | |||
| i magnitude | 15.71 (0.07) | |||
| z magnitude | ||||
| G magnitude | 15.52 (0.0007) | 15.50 (0.003) | ||
| BP magnitude | 15.42 (0.005) | |||
| RP magnitude | 15.61 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.025 | |||
* 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.