All names: WISE J215920.40-205646.0, GALEX J215920.3-205645, 2MASS J21592040-2056461, EC 21565-2111, TIC 421951567, Gaia DR2 6823123039430374912, UCAC4 346-195401, Gaia DR3 6823123039430374912, EC21565-2111
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 59 20.44 | 21 59 20.41 (0.02) | ||
| Declination | -20 56 46.43 | -20 56 46.14 (0.02) | ||
| Spectral type | sdB+F | F+sd? | ||
| 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] | 0.50 (0.05) | 0.66 (0.02) | |
| Distance | [pc] | 2012.07 (221) | 1508.98 (48) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.745 (0.08) | -2.891 (0.02) | |
| Proper motion (declination) | [mas/yr] | 0.867 (0.09) | 0.579 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.20 (0.02) | |||
| V magnitude | 13.96 (0.03) | |||
| R magnitude | 14.21 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.45 (0.03) | 13.45 (0.03) | ||
| H magnitude | 13.25 (0.03) | 13.25 (0.03) | ||
| K magnitude | 13.19 (0.04) | 13.19 (0.04) | ||
| u magnitude | ||||
| g magnitude | 14.03 (0.01) | |||
| r magnitude | 13.98 (0.01) | |||
| i magnitude | 13.92 (0.01) | |||
| z magnitude | ||||
| G magnitude | 13.90 (0.0006) | 13.88 (0.003) | ||
| BP magnitude | 13.96 (0.005) | |||
| RP magnitude | 13.69 (0.001) | |||
| Pan g magnitude | 13.99 (0.006) | |||
| Pan r magnitude | 13.98 (0.001) | |||
| Pan i magnitude | 14.03 (0.001) | |||
| Pan z magnitude | 14.11 (0.003) | |||
| Pan y magnitude | 14.12 (0.002) | |||
| E(B-V) | 0.020 | |||
* 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.