All names: TIC 349486541, SDSSJ165439.06+201622.1, Gaia EDR3 4564544805281218560, GALEX J165439.1+201622, 2MASS J16543907+2016221, Gaia DR2 4564544805281218560, Gaia DR3 4564544805281218560, SDSS J165439.06+201622.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 54 39.06 (0.02) | 16 54 39.07 | 16 54 39.06 | 16 54 39.06 (0.03) | 16 54 39.06 (0.02) | 16 54 39.07 | |||
| Declination | 20 16 22.03 (0.02) | 20 16 22.14 | 20 16 22.15 | 20 16 22.03 (0.03) | 20 16 22.10 (0.02) | 20 16 22.11 | |||
| Spectral type | sdB | sdB | SDB | ||||||
| Effective temperature | [K] | 7571.0 (8) | |||||||
| log(g) | [cgs] | 5.00 (0.002) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.22 (0.03) | 0.17 (0.05) | 0.17 (0.05) | 0.22 (0.03) | ||||
| Distance | [pc] | 4560.96 (578) | 5851.38 (1572) | 5852.89 (1573) | 4559.96 (578) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.542971313 (0.02) | -4.529 (0.07) | -4.529165016 (0.07) | -4.543 (0.02) | -2.3 | |||
| Proper motion (declination) | [mas/yr] | -4.556454902 (0.02) | -4.564 (0.06) | -4.564288684 (0.06) | -4.556 (0.02) | -6.3 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.39 (0.06) | 15.39 (0.06) | |||||||
| H magnitude | 15.67 (0.2) | 15.67 (0.2) | |||||||
| K magnitude | 15.54 (0.3) | 15.54 (0.3) | |||||||
| u magnitude | 15.93 (0.005) | 15.93 (0.005) | 15.93 (0.005) | 15.94 (0.01) | |||||
| g magnitude | 15.27 (0.004) | 15.27 (0.004) | 15.27 (0.004) | 15.29 (0.01) | |||||
| r magnitude | 15.53 (0.005) | 15.54 (0.005) | 15.54 (0.005) | 15.53 (0.01) | |||||
| i magnitude | 15.75 (0.005) | 15.75 (0.005) | 15.75 (0.005) | 15.76 (0.01) | |||||
| z magnitude | 15.91 (0.006) | 15.91 (0.006) | 15.91 (0.006) | 15.91 (0.01) | |||||
| G magnitude | 15.40 (0.001) | 15.42 (0.0005) | 15.42 | 15.40 (0.003) | |||||
| BP magnitude | 15.40 (0.001) | 15.38 (0.004) | 15.38 | ||||||
| RP magnitude | 15.42 (0.002) | 15.41 (0.003) | 15.41 | ||||||
| Pan g magnitude | 15.32 (0.002) | 15.32 (0.002) | |||||||
| Pan r magnitude | 15.54 (0.002) | 15.54 (0.002) | |||||||
| Pan i magnitude | 15.76 (0.002) | 15.76 (0.002) | |||||||
| Pan z magnitude | 15.91 (0.003) | 15.91 (0.003) | |||||||
| Pan y magnitude | 15.97 (0.005) | 15.97 (0.005) | |||||||
| E(B-V) | 0.048 | ||||||||
* 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.