All names: UCAC4 323-000589, EC 00285-2552, WISE J003103.28-253539.7, TIC 246881770, 2MASS J00310329-2535394, Gaia DR2 2346777212936156800, GALEX J003103.3-253539, Ton S 160, WISEA J003103.29-253539.7, EC00285-2552, Gaia DR3 2346777212936156800
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 31 03.29 | 00 31 03.29 (0.03) | ||
| Declination | -25 35 39.05 | -25 35 39.59 (0.03) | ||
| 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] | 0.48 (0.05) | 0.37 (0.04) | |
| Distance | [pc] | 2088.99 (219) | 2683.12 (308) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 8.46 (0.08) | 8.457 (0.04) | |
| Proper motion (declination) | [mas/yr] | -14.973 (0.06) | -14.949 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.64 (0.08) | |||
| V magnitude | 15.46 (0.04) | |||
| R magnitude | 15.73 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.78 (0.04) | 14.78 (0.04) | ||
| H magnitude | 14.54 (0.05) | 14.54 (0.05) | ||
| K magnitude | 14.52 (0.08) | 14.52 (0.08) | ||
| u magnitude | ||||
| g magnitude | 15.50 (0.03) | |||
| r magnitude | 15.50 (0.03) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.39 (0.0005) | 15.37 (0.003) | ||
| BP magnitude | 15.48 (0.004) | |||
| RP magnitude | 15.14 (0.001) | |||
| Pan g magnitude | 15.50 (0.004) | |||
| Pan r magnitude | 15.47 (0.003) | |||
| Pan i magnitude | 15.47 (0.004) | |||
| Pan z magnitude | 15.52 (0.008) | |||
| Pan y magnitude | 15.55 (0.003) | |||
| E(B-V) | 0.006 | |||
* 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.