All names: Gaia DR3 1334094151549330816, SDSS J172159.03+332641.3, Gaia DR2 1334094151549330816, Gaia EDR3 1334094151549330816, SDSS J172159.02+332641.4, SDSS J172159.03+332641.41, GALEX J172159.0+332642, SDSS J172159.03+332641.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 21 59.01 (0.2) | 17 21 59.03 | 17 21 59.01 (0.3) | 17 21 59.01 | 17 21 59.04 (0.2) | |||||
| Declination | 33 26 41.52 (0.2) | 33 26 41.44 | 33 26 41.51 (0.3) | 33 26 41.52 | 33 26 41.26 (0.2) | |||||
| Spectral type | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 9057.0 (30) | 8929.0 (298) | |||||||
| log(g) | [cgs] | 7.79 (0.01) | 7.83 (0.08) | |||||||
| Mass | [M☉] | 0.506 (0.005) | 0.502 (0.06) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 4.87 (0.2) | 5.31 (0.3) | 4.87 | 4.87 (0.2) | |||||
| Distance | [pc] | 205.27 (9) | 188.49 (12) | 205.27 | 205.28 (9) | |||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -21.52016517 (0.2) | -19.81239879 (0.6) | -21.52 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | 16.45077649 (0.2) | 19.84372671 (0.7) | 16.451 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 19.48 (0.03) | 19.48 (0.03) | 19.48 (0.03) | |||||||
| g magnitude | 18.94 (0.01) | 18.94 (0.01) | 18.94 (0.01) | |||||||
| r magnitude | 18.98 (0.01) | 18.98 (0.01) | 18.98 (0.01) | |||||||
| i magnitude | 18.98 (0.01) | 18.98 (0.01) | 18.98 (0.01) | |||||||
| z magnitude | 19.07 (0.05) | 19.07 (0.05) | 19.07 (0.05) | |||||||
| G magnitude | 19.04 (0.03) | 19.06 | 19.04 | 19.04 (0.004) | ||||||
| BP magnitude | 19.00 (0.03) | 19.04 | ||||||||
| RP magnitude | 18.74 (0.03) | 18.73 | ||||||||
| Pan g magnitude | 18.95 (0.005) | |||||||||
| Pan r magnitude | 18.98 (0.01) | |||||||||
| Pan i magnitude | 19.04 (0.008) | |||||||||
| Pan z magnitude | 19.16 (0.03) | |||||||||
| Pan y magnitude | 19.26 (0.03) | |||||||||
| E(B-V) | 0.019 | |||||||||
* 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.