All names: Gaia DR3 6873359343451933312, DENIS J201729.9-171240, 2MASS J20172999-1712405, TIC 114494555, UCAC4 364-177891, WISE J201729.93-171242.1, UCAC2 25436725, GALEX J201729.8-171241, Gaia DR2 6873359343451933312, WISEA J201729.93-171242.3
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 20 17 30.00 (0.04) | |
| Declination | -17 12 40.89 (0.03) | |
| 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] | 9.83 (0.05) |
| Distance | [pc] | 101.71 (0.5) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -64.125 (0.05) |
| Proper motion (declination) | [mas/yr] | -119.41 (0.04) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 14.12 (0.03) | |
| V magnitude | 14.39 (0.02) | |
| R magnitude | 14.46 (0.1) | |
| I magnitude | 14.55 (0.04) | |
| J magnitude | 14.97 (0.03) | |
| H magnitude | 15.12 (0.09) | |
| K magnitude | 15.16 (0.1) | |
| u magnitude | ||
| g magnitude | 14.10 (0.03) | |
| r magnitude | 14.55 (0.04) | |
| i magnitude | 14.96 (0.01) | |
| z magnitude | ||
| G magnitude | 14.28 (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.