All names: Gaia DR3 671815245387672960, GALEX J074757.3+191726, SDSS J074757.31+191727.1, Gaia EDR3 671815245387672960, Gaia DR2 671815245387672960, SDSS J074757.32+191727.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 47 57.32 (1) | 07 47 57.32 | 07 47 57.32 (2) | 07 47 57.32 (1) | 07 47 57.32 | ||||
| Declination | 19 17 27.11 (0.9) | 19 17 27.14 | 19 17 27.11 (1) | 19 17 27.19 (0.9) | 19 17 27.15 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 26223.0 (928) | |||||||
| log(g) | [cgs] | 7.83 (0.1) | |||||||
| Mass | [M☉] | 0.556 (0.06) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.68 (1) | 1.68 (1) | ||||||
| Distance | [pc] | 594.70 (450) | 594.71 (450) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -1.197973931 (1) | -1.198 (1) | ||||||
| Proper motion (declination) | [mas/yr] | -4.948569085 (0.9) | -4.949 (0.9) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 20.36 (0.05) | 20.37 (0.06) | 20.37 (0.06) | ||||||
| g magnitude | 20.46 (0.02) | 20.48 (0.03) | 20.48 (0.03) | ||||||
| r magnitude | 20.88 (0.04) | 20.91 (0.04) | 20.91 (0.04) | ||||||
| i magnitude | 21.15 (0.08) | 21.18 (0.08) | 21.18 (0.08) | ||||||
| z magnitude | 21.49 (0.5) | 21.52 (0.5) | 21.52 (0.5) | ||||||
| G magnitude | 20.71 (0.1) | 20.78 | 20.71 (0.01) | ||||||
| BP magnitude | 20.43 (0.1) | 20.34 | |||||||
| RP magnitude | 20.79 (0.2) | 20.98 | |||||||
| Pan g magnitude | 20.58 (0.03) | ||||||||
| Pan r magnitude | 20.91 (0.03) | ||||||||
| Pan i magnitude | 21.17 (0.02) | ||||||||
| Pan z magnitude | 21.30 (0.02) | ||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.036 | ||||||||
* 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.