All names: Gaia DR3 932783711765635456, SDSS J075704.25+474252.3, SDSS J075704.32+474252.2, Gaia EDR3 932783711765635456, WD 0753+478, Gaia DR2 932783711765635456, GALEX J075704.2+474252, SDSS J075704.24+474252.4
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 57 04.25 (0.3) | 07 57 04.25 | 07 57 04.25 (0.3) | 07 57 04.25 (0.3) | 07 57 04.25 | |||
| Declination | 47 42 52.34 (0.2) | 47 42 52.41 | 47 42 52.35 (0.3) | 47 42 52.39 (0.2) | 47 42 51.12 | |||
| Spectral type | DB | DB: dK | ||||||
| Effective temperature | [K] | |||||||
| log(g) | [cgs] | |||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.52 (0.3) | 1.44 (0.5) | 0.52 (0.3) | ||||
| Distance | [pc] | 1923.17 (1220) | 692.37 (251) | 1923.08 (1220) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.415043455 (0.3) | -0.765576741 (0.7) | -1.415 (0.3) | ||||
| Proper motion (declination) | [mas/yr] | -2.720966368 (0.2) | -2.816263006 (0.6) | -2.721 (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 | 19.95 (0.04) | 19.94 (0.04) | 19.94 | |||||
| g magnitude | 19.86 (0.02) | 19.88 (0.02) | 19.87 | |||||
| r magnitude | 19.39 (0.02) | 19.39 (0.01) | 19.39 | |||||
| i magnitude | 18.93 (0.01) | 18.94 (0.01) | 18.94 | |||||
| z magnitude | 18.61 (0.04) | 18.61 (0.04) | 18.60 | |||||
| G magnitude | 19.29 (0.05) | 19.30 | 19.29 (0.005) | |||||
| BP magnitude | 19.79 (0.05) | 19.77 | ||||||
| RP magnitude | 18.58 (0.02) | 18.60 | ||||||
| Pan g magnitude | 19.87 (0.01) | |||||||
| Pan r magnitude | 19.41 (0.01) | |||||||
| Pan i magnitude | 18.93 (0.004) | |||||||
| Pan z magnitude | 18.71 (0.04) | |||||||
| Pan y magnitude | 18.44 (0.01) | |||||||
| E(B-V) | 0.045 | |||||||
* 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.