All names: GALEX J185846.3+655718, Gaia DR2 2255290110269352704, Gaia DR3 2255290114567501696
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 18 58 46.19 | 18 58 46.16 (0.1) | |
| Declination | 65 57 19.26 | 65 57 18.71 (0.09) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 13561.0 (396) | |
| log(g) | [cgs] | 7.89 (0.04) | |
| Mass | [M☉] | 0.547 (0.03) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 4.48 | 4.48 (0.1) |
| Distance | [pc] | 223.06 | 223.05 (5) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 13.693 (0.2) | |
| Proper motion (declination) | [mas/yr] | 34.787 (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 | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 18.11 | 18.11 (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.