All names: WISE J101757.39+355517.4, WISEA J101757.38+355517.2, Ton 1200, CSO 256, 2MASS J10175737+3555172, GALEX J101757.3+355517, SDSSJ101757.37+355517.5, Gaia DR3 753807962069995648, UCAC4 630-045520, Gaia DR2 753807962069995648, SDSS J101757.36+355517.5, TIC 8116821
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 10 17 57.37 | 10 17 57.37 (0.07) | ||
| Declination | 35 55 17.50 | 35 55 17.53 (0.07) | ||
| Spectral type | sdOB+MS | sdB0He7+F/K | ||
| 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] | 0.37 (0.09) | 0.32 (0.09) | |
| Distance | [pc] | 2673.80 (647) | 3095.98 (892) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.522 (0.1) | 3.778 (0.1) | |
| Proper motion (declination) | [mas/yr] | -4.043 (0.1) | -4.206 (0.08) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.17 (0.06) | |||
| V magnitude | 15.99 (0.08) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.64 (0.07) | 15.64 (0.07) | ||
| H magnitude | 15.15 (0.1) | 15.15 (0.1) | ||
| K magnitude | 14.92 (0.1) | 14.92 (0.1) | ||
| u magnitude | 16.11 (0.006) | 16.11 (0.006) | ||
| g magnitude | 16.01 (0.004) | 16.01 (0.004) | ||
| r magnitude | 16.05 (0.004) | 16.05 (0.004) | ||
| i magnitude | 16.09 (0.004) | 16.09 (0.004) | ||
| z magnitude | 16.14 (0.007) | 16.14 (0.007) | ||
| G magnitude | 15.99 (0.001) | 15.99 (0.003) | ||
| BP magnitude | 16.02 (0.008) | |||
| RP magnitude | 15.78 (0.004) | |||
| Pan g magnitude | 16.05 (0.004) | |||
| Pan r magnitude | 16.06 (0.002) | |||
| Pan i magnitude | 16.10 (0.004) | |||
| Pan z magnitude | 16.17 (0.004) | |||
| Pan y magnitude | 16.19 (0.004) | |||
| E(B-V) | 0.019 | |||
* 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.