All names: PSO J068.5212+39.1899, LAMOST J043405.07+391124.3, GALEX J043405.0+391124, Gaia DR2 178949262640226176, Gaia DR3 178949262640226176
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 04 34 05.10 | 04 34 05.03 (0.09) | |
| Declination | 39 11 23.55 | 39 11 25.34 (0.07) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 10045.0 (150) | |
| log(g) | [cgs] | 7.85 (0.03) | |
| Mass | [M☉] | 0.515 (0.02) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 7.16 | 7.16 (0.1) |
| Distance | [pc] | 139.61 | 139.61 (2) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 50.602 (0.1) | |
| Proper motion (declination) | [mas/yr] | -112.03 (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 | 17.59 (0.02) | ||
| r magnitude | 17.77 (0.008) | ||
| i magnitude | 17.90 (0.008) | ||
| z magnitude | 18.07 (0.006) | ||
| G magnitude | 17.65 | 17.65 (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.