All names: TIC 337137913, GALEX J021752.3+090602, HS 0215+0852, Gaia DR3 23927232741928192, 2MASS J02175235+0906016, HS0215+0852, Gaia DR2 23927232741928192
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 02 17 52.33 | 02 17 52.36 (0.03) | ||
| Declination | 09 06 01.31 | 09 06 01.52 (0.02) | ||
| Spectral type | sdB+MS | |||
| 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] | 0.59 (0.04) | 0.59 (0.03) | |
| Distance | [pc] | 1691.19 (126) | 1684.07 (81) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 5.445 (0.07) | 5.466 (0.03) | |
| Proper motion (declination) | [mas/yr] | 1.556 (0.06) | 1.627 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.03 (0.03) | 14.03 (0.03) | ||
| H magnitude | 13.78 (0.04) | 13.78 (0.04) | ||
| K magnitude | 13.88 (0.06) | 13.88 (0.06) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.66 (0.0005) | 14.64 (0.003) | ||
| BP magnitude | 14.75 (0.005) | |||
| RP magnitude | 14.41 (0.002) | |||
| Pan g magnitude | 14.79 (0.002) | |||
| Pan r magnitude | 14.76 (0.01) | |||
| Pan i magnitude | 14.75 (0.005) | |||
| Pan z magnitude | 14.78 (0.002) | |||
| Pan y magnitude | ||||
| E(B-V) | 0.083 | |||
* 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.