All names: GALEX J224027.0-204316, Gaia DR3 2400749455605526656, Gaia DR2 2400749451309670016
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 22 40 27.06 | 22 40 27.05 (0.2) | |
| Declination | -20 43 16.35 | -20 43 16.51 (0.2) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 11449.0 (514) | |
| log(g) | [cgs] | 8.03 (0.08) | |
| Mass | [M☉] | 0.62 (0.07) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 3.77 | 3.77 (0.2) |
| Distance | [pc] | 265.37 | 265.36 (16) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 5.272 (0.2) | |
| Proper motion (declination) | [mas/yr] | 10.094 (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 | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 19.00 | 19.00 (0.004) | |
| 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.