All names: Gaia DR3 6792781535027244416, 2MASS J20340293-3242198, EC20309-3252, BPS CS 30336-0116, Gaia DR2 6792781535027244416, EC 20309-3252, TIC 441312140, UCAC4 287-209710, GALEX J203402.9-324219
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 34 02.85 | 20 34 02.94 (0.02) | ||
| Declination | -32 42 22.18 | -32 42 19.86 (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] | 0.34 (0.05) | 0.39 (0.03) | |
| Distance | [pc] | 2956.83 (412) | 2594.71 (193) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.109 (0.06) | 2.95 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.735 (0.04) | -2.787 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.63 | |||
| V magnitude | 14.52 | |||
| R magnitude | 14.64 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.91 (0.03) | 13.91 (0.03) | ||
| H magnitude | 13.63 (0.03) | 13.63 (0.03) | ||
| K magnitude | 13.65 (0.04) | 13.65 (0.04) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 14.46 (0.0005) | 14.44 (0.003) | ||
| BP magnitude | 14.51 (0.005) | |||
| RP magnitude | 14.23 (0.002) | |||
| Pan g magnitude | 14.90 | |||
| Pan r magnitude | 14.69 | |||
| Pan i magnitude | 14.61 (0.002) | |||
| Pan z magnitude | 14.69 | |||
| Pan y magnitude | 14.71 | |||
| E(B-V) | 0.046 | |||
* 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.