All names: EC21435-6901, Gaia DR3 6396880864249861632, EC 21435-6901, 2MASS J21474344-6847195, UCAC4 107-117619, GALEX J214743.3-684719, TIC 410086668, Gaia DR2 6396880864249861632
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 21 47 43.43 | 21 47 43.47 (0.02) | ||
| Declination | -68 47 19.86 | -68 47 19.57 (0.03) | ||
| 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] | 0.39 (0.05) | 0.45 (0.04) | |
| Distance | [pc] | 2541.94 (322) | 2227.67 (177) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.527 (0.07) | 2.563 (0.03) | |
| Proper motion (declination) | [mas/yr] | -7.386 (0.09) | -7.641 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.04 (0.03) | |||
| V magnitude | 15.29 (0.1) | |||
| R magnitude | 15.52 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.80 (0.06) | 15.80 (0.06) | ||
| H magnitude | 15.90 (0.1) | 15.90 (0.1) | ||
| K magnitude | 15.27 | |||
| u magnitude | ||||
| g magnitude | 15.07 (0.04) | |||
| r magnitude | 15.48 (0.05) | |||
| i magnitude | 15.93 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.30 (0.0006) | 15.28 (0.003) | ||
| BP magnitude | 15.11 (0.008) | |||
| RP magnitude | 15.53 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.023 | |||
* 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.