All names: TIC 385468475, WD 2220+217, Gaia DR3 1874954645786146304, UCAC4 561-138950, ** SLN 44B, HS 2220+2146B, SDSS J222301.72+220124.9, Gaia DR2 1874954645786146304, PM J22230+2201S, 2MASS J22230169+2201253, WDS J22230+2202B, SDSS J222301.72+220125.0
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 22 23 01.71 (0.05) | |
| Declination | 22 01 25.28 (0.05) | |
| Spectral type | DA | |
| Effective temperature | [K] | |
| log(g) | [cgs] | |
| Mass | [M☉] | |
| log(Luminosity) | [L☉] | |
| Cooling age | [Gyr] | |
| log(H/He) | ||
| log(C/He) | ||
| log(Ca/He) | ||
| log(Ca/H) | ||
| Parallax | [mas] | 14.20 (0.06) |
| Distance | [pc] | 70.44 (0.3) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 51.067 (0.06) |
| Proper motion (declination) | [mas/yr] | -62.337 (0.06) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 15.24 (0.07) | |
| V magnitude | 15.22 (0.1) | |
| R magnitude | 16.25 (0.2) | |
| I magnitude | ||
| J magnitude | 16.41 (0.1) | |
| H magnitude | ||
| K magnitude | ||
| u magnitude | 16.36 (0.006) | |
| g magnitude | 16.00 (0.004) | |
| r magnitude | 16.21 (0.005) | |
| i magnitude | 16.46 (0.005) | |
| z magnitude | 16.70 (0.01) | |
| G magnitude | 16.11 (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.