All names: EC 20198-6718, UCAC4 115-138146, Gaia DR3 6425593888856232704, GALEX J202431.8-670907, TIC 371836968, 2MASS J20243193-6709078, Gaia DR2 6425593888856232704, EC20198-6718
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 24 31.86 | 20 24 31.95 (0.02) | ||
| Declination | -67 09 08.24 | -67 09 07.88 (0.03) | ||
| Spectral type | sdOB+G | sdOB+G | ||
| 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] | 0.35 (0.05) | 0.31 (0.03) | |
| Distance | [pc] | 2851.44 (373) | 3178.64 (326) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.924 (0.06) | -2.027 (0.02) | |
| Proper motion (declination) | [mas/yr] | -5.684 (0.09) | -5.474 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 16.12 | |||
| V magnitude | 16.05 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.44 (0.05) | 15.44 (0.05) | ||
| H magnitude | 15.34 (0.1) | 15.34 (0.1) | ||
| K magnitude | 15.25 (0.2) | 15.25 (0.2) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.96 (0.0009) | 15.94 (0.003) | ||
| BP magnitude | 15.97 (0.005) | |||
| RP magnitude | 15.80 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.034 | |||
* 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.