All names: SDSS J203256.00+775718.7, GALEX J203256.0+775718, Gaia DR2 2290960161556196352, UCAC4 840-017388, SDSS J203255.95+775718.9, Gaia DR3 2290960161556196352, 2MASS J20325618+7757185, SDSSJ203255.99+775718.8
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 32 55.99 | 20 32 55.99 (0.04) | ||
| Declination | 77 57 18.80 | 77 57 18.72 (0.04) | ||
| Spectral type | sdB | sdB1.5He6 | ||
| Effective temperature | [K] | 30844.0 (1082) | ||
| log(g) | [cgs] | 5.57 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.63 (0.05) | 0.62 (0.04) | |
| Distance | [pc] | 1595.91 (125) | 1609.53 (105) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.179 (0.09) | 3.242 (0.06) | |
| Proper motion (declination) | [mas/yr] | 2.119 (0.1) | 2.242 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.54 (0.2) | 16.54 (0.2) | ||
| H magnitude | 15.90 | |||
| K magnitude | 16.92 | |||
| u magnitude | 16.35 (0.006) | 16.35 (0.006) | ||
| g magnitude | 16.31 (0.004) | 16.31 (0.004) | ||
| r magnitude | 16.55 (0.005) | 16.55 (0.005) | ||
| i magnitude | 16.73 (0.005) | 16.73 (0.005) | ||
| z magnitude | 16.95 (0.01) | 16.95 (0.01) | ||
| G magnitude | 16.46 (0.001) | 16.43 (0.003) | ||
| BP magnitude | 16.37 (0.007) | |||
| RP magnitude | 16.46 (0.005) | |||
| Pan g magnitude | 16.40 (0.004) | |||
| Pan r magnitude | 16.58 (0.002) | |||
| Pan i magnitude | 16.79 (0.003) | |||
| Pan z magnitude | 16.98 (0.003) | |||
| Pan y magnitude | 17.12 (0.01) | |||
| E(B-V) | 0.215 | |||
* 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.