All names: GALEX J211650.5-610206, UCAC4 145-224247, EC 21129-6114, Gaia DR2 6451927879534896640, 2MASS J21165071-6102073, Gaia DR3 6451927879534896640, EC21129-6114, TIC 394517681
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 16 50.78 | 21 16 50.69 (0.02) | ||
| Declination | -61 02 05.57 | -61 02 07.16 (0.02) | ||
| Spectral type | sdB | sdB/B | ||
| 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] | 0.24 (0.06) | 0.23 (0.04) | |
| Distance | [pc] | 4168.40 (1011) | 4405.29 (697) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.866 (0.09) | 3.886 (0.03) | |
| Proper motion (declination) | [mas/yr] | -5.413 (0.08) | -5.614 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.68 (0.03) | |||
| V magnitude | 15.79 (0.01) | |||
| R magnitude | 15.95 (0.1) | |||
| I magnitude | ||||
| J magnitude | 16.06 (0.09) | 16.06 (0.09) | ||
| H magnitude | 16.24 (0.3) | 16.24 (0.3) | ||
| K magnitude | 16.20 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.77 (0.0007) | 15.74 (0.003) | ||
| BP magnitude | 15.67 (0.005) | |||
| RP magnitude | 15.84 (0.003) | |||
| 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.