All names: Gaia EDR3 1366533902098750848, PG1729+500, Gaia DR2 1366533631515180032, PG 1729+500, LAMOST J173048.35+495922.9, Gaia DR3 1366533902098750848, GALEX J173048.3+495922, Gaia DR3 1366533631515180032, USNO-B1.0 1399-00276103
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 17 30 47.93 (0.07) | 17 30 48.37 | 17 30 47.93 | 17 30 48.35 (0.05) | ||
| Declination | 50 00 16.66 (0.08) | 49 59 22.81 | 50 00 16.66 | 49 59 22.85 (0.06) | ||
| Spectral type | sdB | DA | sdB | |||
| Effective temperature | [K] | 8924.0 (170) | ||||
| log(g) | [cgs] | 8.13 (0.03) | ||||
| Mass | [M☉] | 0.678 (0.03) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 9.43 (0.08) | 0.01 (0.07) | 9.43 | 0.23 (0.06) | |
| Distance | [pc] | 106.05 (0.9) | 196078.43 (2841215) | 106.05 | 4351.61 (1077) | |
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 15.323 (0.1) | -2.526 (0.2) | -2.708 (0.07) | ||
| Proper motion (declination) | [mas/yr] | 25.909 (0.1) | 1.844 (0.2) | 1.996 (0.07) | ||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | 16.50 | |||||
| V magnitude | ||||||
| R magnitude | 16.80 | |||||
| I magnitude | ||||||
| J magnitude | ||||||
| H magnitude | ||||||
| K magnitude | ||||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 17.87 (0.003) | 16.77 (0.002) | 17.87 | 16.74 (0.003) | ||
| BP magnitude | 17.96 (0.01) | 16.50 (0.008) | ||||
| RP magnitude | 17.72 (0.02) | 17.06 (0.008) | ||||
| Pan g magnitude | 16.58 (0.008) | |||||
| Pan r magnitude | 17.00 (0.003) | |||||
| Pan i magnitude | 17.37 (0.004) | |||||
| Pan z magnitude | 17.67 (0.007) | |||||
| Pan y magnitude | 17.86 (0.01) | |||||
| E(B-V) | 0.030 | |||||
* 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.