All names: Gaia DR2 6363307963890671360, JL 39, TIC 469826577, GALEX J200946.4-772116, GSC 09464-01525, WDJ200946.56-772116.06, 2MASS J20094654-7721160, EC 20029-7730, Gaia EDR3 6363307963890671360, WDJ200946.56-772116.05, Gaia DR3 6363307963890671360
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 20 09 46.44 (0.02) | 20 09 46.44 | 20 09 46.44 | 20 09 46.56 (0.02) | 20 09 46.44 | ||
| Declination | -77 21 17.53 (0.03) | -77 21 17.48 | -77 21 17.53 | -77 21 16.06 (0.03) | -77 21 17.48 | ||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 19850.0 (226) | |||||
| log(g) | [cgs] | 7.93 (0.01) | |||||
| Mass | [M☉] | 0.586 (0.008) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 11.23 (0.03) | 11.23 (0.05) | 11.23 | 11.23 (0.03) | 11.23 (0.05) | |
| Distance | [pc] | 89.02 (0.2) | 89.02 (0.4) | 89.02 | 89.02 (0.2) | 89.02 (0.4) | |
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | -23.93719785 (0.03) | -23.93747741 (0.07) | -23.937 (0.03) | -23.93747741 | ||
| Proper motion (declination) | [mas/yr] | -91.57707628 (0.03) | -91.75452405 (0.08) | -91.577 (0.03) | -91.75452405 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 15.36 | ||||||
| V magnitude | 15.50 | ||||||
| R magnitude | |||||||
| I magnitude | |||||||
| J magnitude | 15.93 (0.08) | ||||||
| H magnitude | 16.11 (0.2) | ||||||
| K magnitude | |||||||
| u magnitude | |||||||
| g magnitude | |||||||
| r magnitude | |||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 15.45 (0.002) | 15.46 | 15.45 | 15.45 (0.003) | 15.46 | ||
| BP magnitude | 15.37 (0.002) | 15.33 | 15.33 | ||||
| RP magnitude | 15.63 (0.002) | 15.63 | 15.63 | ||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.005 | ||||||
* 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.