All names: Gaia DR2 6468676843240290688, Gaia EDR3 6468679793881738240, EC 20092-5721, Gaia DR3 6468676843240290688, EC20092-5721, 2MASS J20131804-5712287
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 13 13.56 (0.6) | 20 13 18.11 | 20 13 18.01 (0.04) | ||
| Declination | -57 12 10.06 (0.6) | -57 12 28.62 | -57 12 28.60 (0.04) | ||
| 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] | 1.93 (0.9) | 0.30 (0.1) | 0.15 (0.06) | |
| Distance | [pc] | 518.32 (234) | 3326.68 (1210) | 6459.95 (2533) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 5.394 (0.7) | 4.68 (0.1) | 4.992 (0.05) | |
| Proper motion (declination) | [mas/yr] | -13.904 (0.7) | -9.137 (0.1) | -9.352 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 16.50 | ||||
| V magnitude | 16.63 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 16.65 (0.1) | 16.65 (0.1) | |||
| H magnitude | 16.31 | ||||
| K magnitude | 16.08 | ||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 20.44 (0.007) | 16.61 (0.001) | 16.58 (0.003) | ||
| BP magnitude | 20.65 (0.1) | 16.50 (0.006) | |||
| RP magnitude | 19.77 (0.08) | 16.69 (0.007) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.030 | ||||
* 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.