All names: TIC 166580970, 2MASS J20520043-5153385, EC 20483-5204, Gaia DR3 6477389854416222592, Gaia DR2 6477389854415456640, EC20483-5204, UCAC4 191-204657
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 52 00.47 | 20 52 00.46 (0.05) | ||
| Declination | -51 53 38.08 | -51 53 38.22 (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] | 0.20 (0.09) | 0.48 (0.06) | |
| Distance | [pc] | 4935.83 (2088) | 2079.87 (251) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 0.792 (0.1) | 0.29 (0.06) | |
| Proper motion (declination) | [mas/yr] | -2.011 (0.1) | -2.386 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.78 (0.01) | |||
| V magnitude | 15.86 (0.07) | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.28 (0.1) | 16.28 (0.1) | ||
| H magnitude | 15.99 (0.2) | 15.99 (0.2) | ||
| K magnitude | 16.68 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.90 (0.0006) | 15.89 (0.003) | ||
| BP magnitude | 15.73 (0.007) | |||
| RP magnitude | 16.06 (0.004) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.022 | |||
* 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.