All names: GALEX J022123.4+455355, Gaia DR3 353633725819572736, Gaia DR2 353633725819572736
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 02 21 23.51 | 02 21 23.44 (0.2) | |
| Declination | 45 53 54.08 | 45 53 54.37 (0.2) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 15440.0 (1157) | |
| log(g) | [cgs] | 7.70 (0.1) | |
| Mass | [M☉] | 0.459 (0.07) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 3.31 | 3.31 (0.2) |
| Distance | [pc] | 302.13 | 302.13 (19) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 43.817 (0.2) | |
| Proper motion (declination) | [mas/yr] | -18.046 (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 | 18.33 | 18.33 (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.