All names: TIC 139466728, DENIS J222851.5-455059, Gaia DR2 6520178998676887680, Gaia EDR3 6520178998676887680, Gaia DR3 6520178998676887680, WDJ222851.60-455059.35, 2MASS J22285158-4550590, WISEA J222851.59-455059.8, WISE J222851.58-455059.6, WDJ222851.6-455059.34
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 22 28 51.57 (0.03) | 22 28 51.57 | 22 28 51.57 | 22 28 51.60 (0.03) | 22 28 51.57 | ||
| Declination | -45 51 00.26 (0.04) | -45 51 00.23 | -45 51 00.26 | -45 50 59.34 (0.04) | -45 51 00.23 | ||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 12716.0 (166) | |||||
| log(g) | [cgs] | 8.05 (0.01) | |||||
| Mass | [M☉] | 0.638 (0.008) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 11.11 (0.05) | 11.01 (0.09) | 11.11 | 11.11 (0.05) | 11.01 (0.09) | |
| Distance | [pc] | 90.05 (0.4) | 90.85 (0.8) | 90.05 | 90.05 (0.4) | 90.85 (0.8) | |
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -20.84584885 (0.04) | -20.73144897 (0.09) | -20.846 (0.04) | -20.73144897 | ||
| Proper motion (declination) | [mas/yr] | -57.27753362 (0.05) | -57.06985667 (0.1) | -57.278 (0.05) | -57.06985667 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | |||||||
| V magnitude | |||||||
| R magnitude | |||||||
| I magnitude | 16.43 (0.07) | ||||||
| J magnitude | 16.50 (0.1) | ||||||
| H magnitude | |||||||
| K magnitude | |||||||
| u magnitude | |||||||
| g magnitude | |||||||
| r magnitude | |||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 16.44 (0.005) | 16.46 | 16.44 | 16.44 (0.003) | 16.46 | ||
| BP magnitude | 16.44 (0.005) | 16.45 | 16.45 | ||||
| RP magnitude | 16.50 (0.003) | 16.50 | 16.50 | ||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.003 | ||||||
* 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.