All names: 2MASS J20222934-2927404, Gaia EDR3 6797518368560332544, EC 20194-2937, Gaia DR2 6797518368559429888, Gaia DR3 6797518368559429888, TIC 164453159, EC20194-2937, UCAC4 303-271556
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 22 31.52 (0.8) | 20 22 29.31 | 20 22 29.35 (0.02) | ||
| Declination | -29 27 23.63 (0.7) | -29 27 39.64 | -29 27 40.52 (0.02) | ||
| 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] | 1.32 (1) | 0.54 (0.05) | 0.48 (0.03) | |
| Distance | [pc] | 758.38 (598) | 1838.57 (157) | 2064.84 (127) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -9.596 (1) | 13.296 (0.07) | 13.275 (0.03) | |
| Proper motion (declination) | [mas/yr] | -13.496 (1) | -8.794 (0.05) | -8.776 (0.02) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.16 | ||||
| V magnitude | 15.11 | ||||
| R magnitude | 15.35 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 14.55 (0.03) | 14.55 (0.03) | |||
| H magnitude | 14.38 (0.04) | 14.38 (0.04) | |||
| K magnitude | 14.30 (0.06) | 14.30 (0.06) | |||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 20.58 (0.009) | 15.01 (0.0005) | 14.99 (0.003) | ||
| BP magnitude | 20.98 (0.2) | 15.02 (0.005) | |||
| RP magnitude | 20.01 (0.1) | 14.83 (0.002) | |||
| Pan g magnitude | 15.09 (0.003) | ||||
| Pan r magnitude | 15.11 (0.003) | ||||
| Pan i magnitude | 15.17 (0.002) | ||||
| Pan z magnitude | 15.24 (0.003) | ||||
| Pan y magnitude | 15.28 (0.002) | ||||
| E(B-V) | 0.064 | ||||
* 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.