All names: 2MASS J19444186-5639232, Gaia DR2 6448543995061870592, EC19406-5646, UCAC4 167-200263, Gaia DR3 6448543995061870592, TIC 320484212, EC 19406-5646
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 44 41.85 | 19 44 41.86 (0.04) | ||
| Declination | -56 39 23.87 | -56 39 23.33 (0.04) | ||
| 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] | 0.53 (0.09) | 0.44 (0.06) | |
| Distance | [pc] | 1881.47 (322) | 2294.63 (340) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.571 (0.1) | -1.627 (0.05) | |
| Proper motion (declination) | [mas/yr] | -5.965 (0.1) | -5.856 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.11 | |||
| V magnitude | 16.29 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.67 (0.1) | 16.67 (0.1) | ||
| H magnitude | 16.91 | |||
| K magnitude | 17.28 | |||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.31 (0.002) | 16.28 (0.003) | ||
| BP magnitude | 16.11 (0.009) | |||
| RP magnitude | 16.55 (0.004) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.038 | |||
* 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.