All names: SDSS J224643.34+053755.7, GALEX J224643.3+053756, Gaia EDR3 2705510503748601088, Gaia DR3 2705510503748601088, SDSS J224643.35+053755.7, Gaia DR2 2705510503748601088
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|
| Right ascension | 22 46 43.38 (0.2) | 22 46 43.38 | 22 46 43.33 (0.2) | |||
| Declination | 05 37 55.65 (0.2) | 05 37 55.65 | 05 37 55.77 (0.2) | |||
| Spectral type | DA | DA | DA | |||
| Effective temperature | [K] | 6730.0 (197) | ||||
| log(g) | [cgs] | 7.97 (0.06) | ||||
| Mass | [M☉] | 0.571 (0.05) | ||||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | |||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 9.37 (0.2) | 9.37 | 9.37 (0.2) | ||
| Distance | [pc] | 106.68 (3) | 106.68 | 106.68 (3) | ||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 43.246 (0.2) | 43.246 (0.2) | |||
| Proper motion (declination) | [mas/yr] | -7.741 (0.2) | -7.741 (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 | 19.60 (0.03) | |||||
| g magnitude | 18.92 (0.009) | |||||
| r magnitude | 18.68 (0.009) | |||||
| i magnitude | 18.57 (0.01) | |||||
| z magnitude | 18.54 (0.03) | |||||
| G magnitude | 18.70 (0.004) | 18.70 | 18.70 (0.004) | |||
| BP magnitude | 18.93 (0.04) | |||||
| RP magnitude | 18.31 (0.02) | |||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.020 | |||||
* 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.