All names: GALEX J115542.7-233357, TIC 5630042, EC 11531-2317, Gaia DR2 3492894630353584256, Gaia DR3 3492894630353584256, EC11531-2317, 2MASS J11554274-2333571
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 11 55 42.76 | 11 55 42.74 (0.04) | ||
| Declination | -23 33 56.94 | -23 33 57.43 (0.03) | ||
| 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] | 0.39 (0.08) | 0.33 (0.05) | |
| Distance | [pc] | 2545.82 (532) | 3033.06 (478) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.33 (0.1) | -2.307 (0.05) | |
| Proper motion (declination) | [mas/yr] | 8.161 (0.07) | 8.199 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.80 | |||
| V magnitude | 16.03 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.70 (0.1) | 16.70 (0.1) | ||
| H magnitude | 16.08 | |||
| K magnitude | 15.44 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.02 (0.001) | 16.00 (0.003) | ||
| BP magnitude | 15.85 (0.006) | |||
| RP magnitude | 16.23 (0.004) | |||
| Pan g magnitude | 15.84 (0.006) | |||
| Pan r magnitude | 16.22 (0.003) | |||
| Pan i magnitude | 16.55 (0.003) | |||
| Pan z magnitude | 16.81 (0.004) | |||
| Pan y magnitude | 16.97 (0.006) | |||
| E(B-V) | 0.029 | |||
* 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.