All names: Gaia DR3 2645127352376124800, SDSS J231731.34+000421.8, 2SLAQ J231731.34+000421.7, Gaia DR2 2645127352376124800, GALEX J231731.4+000421
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 23 17 31.36 (3) | |
| Declination | 00 04 21.66 (1) | |
| Spectral type | DA | |
| 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] | |
| Distance | [pc] | |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | |
| Proper motion (declination) | [mas/yr] | |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | ||
| V magnitude | ||
| R magnitude | ||
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 21.49 (0.2) | |
| g magnitude | 21.05 (0.05) | |
| r magnitude | 21.02 (0.06) | |
| i magnitude | 20.97 (0.08) | |
| z magnitude | 21.52 (0.6) | |
| G magnitude | 20.91 (0.02) | |
| 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.