All names: HIDDEN NAME PG 1711+564, GALEX J171237.2+562509, SBSS 1711+564, PG 1711+565, TIC 198388481, PG1711+564, Gaia DR2 1432782883580373504, SDSS J171237.29+562508.3, Gaia DR3 1432782883580373504, 2MASS J17123731+5625086, AP J17123731+5625086
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 12 37.30 | 17 12 37.29 (0.04) | ||
| Declination | 56 25 08.19 | 56 25 08.39 (0.04) | ||
| 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] | 0.35 (0.06) | 0.32 (0.04) | |
| Distance | [pc] | 2876.04 (500) | 3117.21 (414) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.195 (0.1) | -0.727 (0.06) | |
| Proper motion (declination) | [mas/yr] | -0.775 (0.1) | -1.215 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.12 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.12 (0.09) | 16.12 (0.09) | ||
| H magnitude | 15.90 (0.1) | 15.90 (0.1) | ||
| K magnitude | 15.62 | |||
| u magnitude | 15.44 (0.004) | 15.45 (0.02) | ||
| g magnitude | 15.80 (0.003) | 15.82 (0.02) | ||
| r magnitude | 16.21 (0.004) | 16.23 (0.01) | ||
| i magnitude | 16.46 (0.004) | 16.44 (0.02) | ||
| z magnitude | 16.67 (0.009) | 16.68 (0.02) | ||
| G magnitude | 16.03 (0.001) | 16.01 (0.003) | ||
| BP magnitude | 15.84 (0.009) | |||
| RP magnitude | 16.17 (0.004) | |||
| Pan g magnitude | 15.90 (0.0008) | |||
| Pan r magnitude | 16.25 (0.005) | |||
| Pan i magnitude | 16.50 (0.003) | |||
| Pan z magnitude | 16.69 (0.006) | |||
| Pan y magnitude | 16.77 (0.007) | |||
| E(B-V) | 0.025 | |||
* 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.