All names: Gaia DR2 6695480249231062144, Gaia DR3 6695480249231062144, TIC 471015433, TIC 1991235170, EC20257-3553, EC 20257-3553
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 28 55.87 | 20 28 55.90 (0.06) | ||
| Declination | -35 43 46.06 | -35 43 45.57 (0.05) | ||
| Spectral type | sdB+F | sdB+F | ||
| 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] | 0.00 (0.1) | 0.00 (0.1) | |
| Distance | [pc] | 222222.22 (4997531) | 222222.22 (4997531) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -4.865 (0.2) | -4.84 (0.08) | |
| Proper motion (declination) | [mas/yr] | -6.485 (0.1) | -6.423 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.56 | |||
| V magnitude | 16.78 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.71 (0.001) | 16.68 (0.003) | ||
| BP magnitude | 16.55 (0.007) | |||
| RP magnitude | 16.86 (0.007) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.042 | |||
* 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.