All names: 2MASS J20063148+0143061, GALEX J200631.5+014307, Gaia DR2 4237604850972555776, Gaia DR3 4237604850972555776, GALEXJ20065+0143, UCAC4 459-110556
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 06 31.51 | 20 06 31.48 (0.03) | ||
| Declination | 01 43 07.48 | 01 43 06.04 (0.02) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 29600.0 (430) | ||
| log(g) | [cgs] | 5.62 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.21 (0.05) | 1.07 (0.03) | |
| Distance | [pc] | 826.45 (33) | 932.14 (29) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.85 (0.08) | -2.764 (0.03) | |
| Proper motion (declination) | [mas/yr] | -14.744 (0.04) | -14.689 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.19 (0.01) | |||
| V magnitude | 14.30 (0.2) | |||
| R magnitude | 14.61 (0.08) | |||
| I magnitude | ||||
| J magnitude | 14.78 (0.04) | 14.78 (0.04) | ||
| H magnitude | 14.74 (0.07) | 14.74 (0.07) | ||
| K magnitude | 14.95 (0.1) | 14.95 (0.1) | ||
| u magnitude | ||||
| g magnitude | 14.17 (0.01) | |||
| r magnitude | 14.50 (0.1) | |||
| i magnitude | 14.91 (0.05) | |||
| z magnitude | ||||
| G magnitude | 14.35 (0.0004) | 14.33 (0.003) | ||
| BP magnitude | 14.18 (0.005) | |||
| RP magnitude | 14.51 (0.002) | |||
| Pan g magnitude | 14.22 (0.001) | |||
| Pan r magnitude | 14.56 (0.003) | |||
| Pan i magnitude | 14.86 (0.002) | |||
| Pan z magnitude | 15.09 (0.002) | |||
| Pan y magnitude | 15.24 (0.004) | |||
| E(B-V) | 0.110 | |||
* 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.