All names: HE 2201-2250, Gaia DR3 6819716919910887680, WD 2201-228, GALEX J220445.2-223612, EC 22019-2250, TIC 206472969, 2MASS J22044519-2236132, WDJ220445.23-223613.48, Gaia EDR3 6819716919910887680, Gaia DR2 6819716919910887680
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 04 45.36 (0.04) | 22 04 45.36 (0.06) | 22 04 45.36 | 22 04 45.23 (0.04) | 22 04 45.36 | 22 04 44.42 | |||
| Declination | -22 36 13.29 (0.03) | -22 36 13.29 (0.05) | -22 36 13.29 | -22 36 13.48 (0.03) | -22 36 13.29 | -22 36 12.60 | |||
| Spectral type | DB | DH | DAH? | ||||||
| Effective temperature | [K] | 11968.0 (116) | |||||||
| log(g) | [cgs] | 8.02 (0.01) | |||||||
| Mass | [M☉] | 0.598 (0.01) | |||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 14.30 (0.04) | 14.25 (0.06) | 14.30 | 14.30 (0.04) | 14.25 (0.06) | |||
| Distance | [pc] | 69.91 (0.2) | 70.17 (0.3) | 69.91 | 69.91 (0.2) | 70.17 (0.3) | |||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 118.2475097 (0.05) | 118.2080211 (0.1) | 118.248 (0.05) | 118.2080211 | ||||
| Proper motion (declination) | [mas/yr] | 12.28742302 (0.04) | 12.18231027 (0.1) | 12.287 (0.04) | 12.18231027 | ||||
| Variability | |||||||||
| Magnetic | yes | ||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | 16.20 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.28 (0.1) | ||||||||
| H magnitude | 15.97 (0.2) | ||||||||
| K magnitude | 15.67 (0.2) | ||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 16.04 (0.003) | 16.07 | 16.04 | 16.04 (0.003) | 16.07 | ||||
| BP magnitude | 16.03 (0.003) | 16.01 | 16.01 | ||||||
| RP magnitude | 16.05 (0.003) | 16.05 | 16.05 | ||||||
| Pan g magnitude | 16.02 (0.004) | ||||||||
| Pan r magnitude | 16.17 (0.004) | ||||||||
| Pan i magnitude | 16.37 (0.002) | ||||||||
| Pan z magnitude | 16.57 (0.003) | ||||||||
| Pan y magnitude | 16.71 (0.007) | ||||||||
| E(B-V) | 0.002 | ||||||||
* 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.