All names: SDSS J201427.03+081918.6, GALEX J201427.1+081919, Gaia DR3 4251161520098713472, SDSS J201427.03+081918.5, Gaia DR2 4251161520098713472, SDSSJ201427.03+081918.6
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 14 27.03 | 20 14 27.03 (0.05) | ||
| Declination | 08 19 18.60 | 08 19 18.67 (0.04) | ||
| Spectral type | sd | sd+G/K | ||
| 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] | 0.29 (0.09) | 0.23 (0.07) | |
| Distance | [pc] | 3444.71 (1036) | 4389.82 (1343) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.436 (0.1) | -2.305 (0.07) | |
| Proper motion (declination) | [mas/yr] | -6.845 (0.1) | -6.993 (0.07) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.22 (0.1) | |||
| H magnitude | 15.84 (0.2) | |||
| K magnitude | 16.69 | |||
| u magnitude | 17.09 (0.009) | 17.09 (0.009) | ||
| g magnitude | 16.96 (0.004) | 16.96 (0.004) | ||
| r magnitude | 16.96 (0.005) | 16.96 (0.005) | ||
| i magnitude | 16.95 (0.005) | 16.95 (0.005) | ||
| z magnitude | 17.00 (0.01) | 17.00 (0.01) | ||
| G magnitude | 16.89 (0.0008) | 16.87 (0.003) | ||
| BP magnitude | 16.97 (0.007) | |||
| RP magnitude | 16.64 (0.004) | |||
| Pan g magnitude | 16.98 (0.004) | |||
| Pan r magnitude | 16.96 (0.0009) | |||
| Pan i magnitude | 16.98 (0.003) | |||
| Pan z magnitude | 17.02 (0.002) | |||
| Pan y magnitude | 17.04 (0.007) | |||
| E(B-V) | 0.105 | |||
* 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.