All names: Gaia DR2 2787001740049356032, 2MASS J01110373+1947423, PG0108+195, Gaia DR3 2787001740049356032, TIC 243228596, GALEX J011103.8+194743, Gaia EDR3 2787001740049356032, PG 0108+195
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 01 11 03.72 (0.04) | 01 11 03.78 | 01 11 03.73 (0.04) | ||
| Declination | 19 47 42.35 (0.03) | 19 47 42.88 | 19 47 42.44 (0.03) | ||
| Spectral type | sdO | sdO | |||
| Effective temperature | [K] | 42780.0 (820) | |||
| log(g) | [cgs] | 5.87 (0.09) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.92 (0.04) | 0.87 (0.06) | 0.92 (0.04) | |
| Distance | [pc] | 1087.43 (46) | 1144.82 (74) | 1087.43 (46) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -11.878 (0.06) | -11.651 (0.1) | -11.878 (0.06) | |
| Proper motion (declination) | [mas/yr] | -5.57 (0.03) | -5.704 (0.08) | -5.57 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.61 | ||||
| V magnitude | 14.46 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.31 (0.04) | 15.31 (0.04) | |||
| H magnitude | 15.50 (0.09) | 15.50 (0.09) | |||
| K magnitude | 15.47 (0.2) | 15.47 (0.2) | |||
| u magnitude | 13.97 (0.003) | ||||
| g magnitude | 14.36 (0.003) | ||||
| r magnitude | 14.88 (0.009) | ||||
| i magnitude | 15.23 (0.004) | ||||
| z magnitude | 15.51 (0.006) | ||||
| G magnitude | 14.60 (0.003) | 14.61 (0.0008) | 14.60 (0.003) | ||
| BP magnitude | 14.44 (0.003) | 14.39 (0.01) | |||
| RP magnitude | 14.90 (0.004) | 14.90 (0.003) | |||
| Pan g magnitude | 14.44 (0.004) | ||||
| Pan r magnitude | 14.87 (0.002) | ||||
| Pan i magnitude | 15.24 (0.004) | ||||
| Pan z magnitude | 15.52 (0.002) | ||||
| Pan y magnitude | 15.71 (0.004) | ||||
| E(B-V) | 0.058 | ||||
* 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.