All names: UCAC4 744-077405, Gaia DR2 2008177384500252032, PSO J340.7741+58.7269, Gaia DR3 2008177384500252032, 2MASS J22430577+5843363
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 22 43 05.80 | 22 43 05.77 (0.03) | |
| Declination | 58 43 36.94 | 58 43 36.70 (0.03) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 34810.0 (876) | |
| log(g) | [cgs] | 7.43 (0.02) | |
| Mass | [M☉] | 0.426 (0.01) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 4.61 | 4.61 (0.03) |
| Distance | [pc] | 217.00 | 217.00 (2) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 16.719 (0.04) | |
| Proper motion (declination) | [mas/yr] | 15.218 (0.03) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 15.15 (0.04) | ||
| V magnitude | 15.47 (0.01) | ||
| R magnitude | 15.83 (0.06) | ||
| I magnitude | |||
| J magnitude | 16.15 (0.1) | ||
| H magnitude | 15.90 (0.2) | ||
| K magnitude | |||
| u magnitude | |||
| g magnitude | 15.26 (0.008) | ||
| r magnitude | 15.66 (0.005) | ||
| i magnitude | 16.02 (0.003) | ||
| z magnitude | 16.29 (0.005) | ||
| G magnitude | 15.40 | 15.40 (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.