All names: PG1743+477, SDSS J174426.39+474146.9, UCAC4 689-059735, Gaia EDR3 1362888819188840320, Gaia DR2 1362888819188840320, SDSS J174426.40+474146.9, 2MASS J17442640+4741468, Gaia DR3 1362888819188840320, PG 1743+477, TIC 193600962
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 17 44 26.40 (0.02) | 17 44 26.41 | 17 44 26.40 (0.02) | ||
| Declination | 47 41 47.11 (0.03) | 47 41 46.33 | 47 41 46.92 (0.03) | ||
| Spectral type | sdB+WD | sdB2VIIHe7 | |||
| Effective temperature | [K] | 25500.0 (900) | |||
| log(g) | [cgs] | 5.41 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.29 (0.02) | 1.30 (0.03) | 1.29 (0.02) | |
| Distance | [pc] | 773.28 (14) | 766.46 (17) | 773.28 (14) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.48 (0.03) | 1.518 (0.06) | 1.48 (0.03) | |
| Proper motion (declination) | [mas/yr] | 12.082 (0.03) | 12.023 (0.07) | 12.082 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.68 (0.2) | ||||
| V magnitude | 13.79 (0.09) | ||||
| R magnitude | 13.99 (0.08) | ||||
| I magnitude | |||||
| J magnitude | 14.31 (0.02) | 14.31 (0.02) | |||
| H magnitude | 14.53 (0.06) | 14.53 (0.06) | |||
| K magnitude | 14.43 (0.08) | 14.43 (0.08) | |||
| u magnitude | 13.36 (0.003) | 13.36 (0.003) | |||
| g magnitude | 13.50 (0.003) | 13.50 (0.003) | |||
| r magnitude | 13.95 (0.003) | 13.95 (0.003) | |||
| i magnitude | 14.29 (0.003) | 14.29 (0.003) | |||
| z magnitude | 14.58 (0.005) | 14.58 (0.005) | |||
| G magnitude | 13.73 (0.003) | 13.75 (0.0005) | 13.73 (0.003) | ||
| BP magnitude | 13.61 (0.003) | 13.56 (0.008) | |||
| RP magnitude | 13.99 (0.004) | 13.99 (0.001) | |||
| Pan g magnitude | 13.57 (0.003) | ||||
| Pan r magnitude | 13.98 (0.008) | ||||
| Pan i magnitude | 14.33 (0.002) | ||||
| Pan z magnitude | 14.60 (0.004) | ||||
| Pan y magnitude | 14.75 (0.004) | ||||
| E(B-V) | 0.031 | ||||
* 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.