All names: TOI-4181, TIC 426017070, EC02512-7321, EC 02512-7321, UCAC4 085-007317, [DI91] 1343, Gaia DR3 4643820796233702656, 2MASS J02511494-7309199, GALEX J025114.7-730919, Gaia DR2 4643820796233702656
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 51 14.88 | 02 51 14.97 (0.04) | ||
| Declination | -73 09 19.40 | -73 09 19.83 (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] | 0.02 (0.05) | 0.06 (0.04) | |
| Distance | [pc] | 44052.86 (93345) | 17094.02 (10695) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 1.758 (0.09) | 1.909 (0.04) | |
| Proper motion (declination) | [mas/yr] | -0.781 (0.08) | -0.877 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.47 (0.08) | |||
| V magnitude | 15.67 (0.05) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.43 (0.1) | 16.43 (0.1) | ||
| H magnitude | 16.11 (0.2) | 16.11 (0.2) | ||
| K magnitude | 16.83 | |||
| u magnitude | ||||
| g magnitude | 15.51 (0.01) | |||
| r magnitude | 16.01 (0.06) | |||
| i magnitude | 16.27 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.70 (0.001) | 15.68 (0.003) | ||
| BP magnitude | 15.52 (0.007) | |||
| RP magnitude | 15.93 (0.005) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.034 | |||
* 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.