All names: Gaia EDR3 2708709257952415872, SDSS J221426.78+055025.9, GALEX J221426.7+055026, SDSS J221426.78+055025.8, Gaia DR3 2708709257952415872, Gaia DR2 2708709257952415872
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 14 26.77 (0.3) | 22 14 26.78 | 22 14 26.77 (0.7) | 22 14 26.79 (0.3) | 22 14 26.78 | ||||
| Declination | 05 50 25.78 (0.3) | 05 50 25.87 | 05 50 25.78 (0.7) | 05 50 25.87 (0.3) | 05 50 25.94 | ||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 20939.0 (365) | |||||||
| log(g) | [cgs] | 7.12 (0.06) | |||||||
| Mass | [M☉] | 0.345 (0.01) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 1.55 (0.4) | 1.55 (0.4) | ||||||
| Distance | [pc] | 646.27 (155) | 646.29 (155) | ||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -16.26856569 (0.5) | -16.269 (0.5) | ||||||
| Proper motion (declination) | [mas/yr] | -5.751836182 (0.4) | -5.752 (0.4) | ||||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.16 (0.02) | 19.17 (0.02) | 19.17 (0.03) | ||||||
| g magnitude | 18.99 (0.009) | 19.00 (0.009) | 19.01 (0.01) | ||||||
| r magnitude | 19.27 (0.01) | 19.27 (0.01) | 19.26 (0.02) | ||||||
| i magnitude | 19.54 (0.02) | 19.55 (0.02) | 19.53 (0.03) | ||||||
| z magnitude | 19.61 (0.07) | 19.61 (0.07) | 19.61 (0.07) | ||||||
| G magnitude | 19.15 (0.04) | 19.20 | 19.15 (0.005) | ||||||
| BP magnitude | 19.04 (0.04) | 19.10 | |||||||
| RP magnitude | 19.27 (0.07) | 19.21 | |||||||
| Pan g magnitude | 19.05 (0.008) | ||||||||
| Pan r magnitude | 19.32 (0.009) | ||||||||
| Pan i magnitude | 19.59 (0.007) | ||||||||
| Pan z magnitude | 19.77 (0.03) | ||||||||
| Pan y magnitude | 19.77 (0.1) | ||||||||
| E(B-V) | 0.063 | ||||||||
* 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.