All names: UCAC4 145-224259, Gaia DR2 6451914891553780992, 2MASS J21171719-6107103, Gaia DR3 6451914891553780992, GALEX J211717.0-610709, EC 21133-6119, EC21133-6119, TIC 394517648
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 17 17.18 | 21 17 17.16 (0.02) | ||
| Declination | -61 07 10.27 | -61 07 10.37 (0.02) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.17 (0.05) | 0.23 (0.03) | |
| Distance | [pc] | 5896.23 (1578) | 4257.13 (502) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 9.762 (0.07) | 9.735 (0.02) | |
| Proper motion (declination) | [mas/yr] | -13.241 (0.08) | -13.231 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.89 (0.03) | |||
| V magnitude | 14.96 (0.03) | |||
| R magnitude | 15.22 (0.2) | |||
| I magnitude | ||||
| J magnitude | 15.02 (0.04) | 15.02 (0.04) | ||
| H magnitude | 15.13 (0.09) | 15.13 (0.09) | ||
| K magnitude | 15.16 (0.2) | 15.16 (0.2) | ||
| u magnitude | ||||
| g magnitude | 14.78 (0.01) | |||
| r magnitude | 15.16 (0.07) | |||
| i magnitude | 15.36 (0.06) | |||
| z magnitude | ||||
| G magnitude | 14.97 (0.0005) | 14.95 (0.003) | ||
| BP magnitude | 14.89 (0.005) | |||
| RP magnitude | 15.01 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| 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.