All names: Gaia EDR3 4571173619150576000, SDSS J170327.74+221838.2, SDSS J170327.74+221838.0, GALEX J170327.7+221838, Gaia DR2 4571173619150576000, Gaia DR3 4571173619150576000, SDSS J170327.74+221838.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 03 27.73 (0.2) | 17 03 27.74 | 17 03 27.73 (0.2) | 17 03 27.75 (0.2) | 17 03 27.74 | ||||
| Declination | 22 18 38.14 (0.2) | 22 18 38.21 | 22 18 38.14 (0.3) | 22 18 38.18 (0.2) | 22 18 38.10 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 9850.0 (202) | |||||||
| log(g) | [cgs] | 8.66 (0.3) | |||||||
| Mass | [M☉] | 1.0 (0.1) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.33 (0.4) | 1.12 (0.5) | 1.33 (0.4) | |||||
| Distance | [pc] | 750.36 (200) | 895.42 (382) | 750.36 (200) | |||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -16.51977533 (0.2) | -17.29196318 (0.6) | -16.52 (0.2) | |||||
| Proper motion (declination) | [mas/yr] | -2.565234958 (0.3) | -2.654858108 (0.7) | -2.565 (0.3) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.46 (0.05) | 20.46 (0.05) | 20.45 (0.06) | ||||||
| g magnitude | 20.00 (0.02) | 20.00 (0.02) | 20.01 (0.02) | ||||||
| r magnitude | 20.02 (0.02) | 20.02 (0.02) | 20.02 (0.02) | ||||||
| i magnitude | 20.14 (0.03) | 20.14 (0.03) | 20.15 (0.03) | ||||||
| z magnitude | 20.27 (0.1) | 20.27 (0.1) | 20.26 (0.1) | ||||||
| G magnitude | 19.97 (0.03) | 20.03 | 19.97 (0.004) | ||||||
| BP magnitude | 20.09 (0.03) | 20.08 | |||||||
| RP magnitude | 19.80 (0.04) | 19.76 | |||||||
| Pan g magnitude | 20.00 (0.02) | ||||||||
| Pan r magnitude | 20.05 (0.01) | ||||||||
| Pan i magnitude | 20.14 (0.02) | ||||||||
| Pan z magnitude | 20.18 (0.07) | ||||||||
| Pan y magnitude | 20.16 (0.1) | ||||||||
| E(B-V) | 0.038 | ||||||||
* 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.