All names: Gaia DR3 1339738838088311552, GALEX J170354.7+375549, SDSS J170354.77+375549.9, Gaia DR2 1339738838088311552, SDSS J170354.78+375549.7
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 17 03 54.78 (0.06) | |
| Declination | 37 55 49.98 (0.07) | |
| Spectral type | DB | |
| 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] | 4.91 (0.08) |
| Distance | [pc] | 203.60 (3) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 8.55 (0.08) |
| Proper motion (declination) | [mas/yr] | -37.46 (0.1) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | ||
| V magnitude | ||
| R magnitude | ||
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 17.48 (0.009) | |
| g magnitude | 17.57 (0.005) | |
| r magnitude | 17.88 (0.006) | |
| i magnitude | 18.13 (0.008) | |
| z magnitude | 18.39 (0.03) | |
| G magnitude | 17.72 (0.003) | |
| BP magnitude | ||
| RP magnitude | ||
| Pan g magnitude | ||
| Pan r magnitude | ||
| Pan i magnitude | ||
| Pan z magnitude | ||
| Pan y magnitude | ||
| E(B-V) | ||
* 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.