All names: UCAC2 33484641, WISE J202617.94+045133.8, Gaia EDR3 4246332396307171328, Gaia DR3 4246332396307171328, WISEA J202617.94+045133.7, GALEX J202618.0+045135, UCAC4 475-119079, Gaia DR2 4246332396307171328, TIC 387884969, SDSS J202617.94+045134.2, GALEXJ20263+0451, 2MASS J20261794+0451340
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 20 26 17.95 (0.03) | 20 26 18.03 | 20 26 17.95 (0.03) | ||
| Declination | 04 51 33.92 (0.02) | 04 51 35.48 | 04 51 34.30 (0.02) | ||
| Spectral type | sdB | sdB | |||
| 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] | 1.68 (0.04) | 1.74 (0.06) | 1.68 (0.04) | |
| Distance | [pc] | 595.42 (13) | 574.94 (19) | 595.42 (13) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 1.122 (0.04) | 1.053 (0.09) | 1.122 (0.04) | |
| Proper motion (declination) | [mas/yr] | -23.686 (0.03) | -23.79 (0.05) | -23.686 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.30 (0.02) | ||||
| V magnitude | 13.48 (0.01) | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.84 (0.03) | 13.84 (0.03) | |||
| H magnitude | 13.95 (0.04) | 13.95 (0.04) | |||
| K magnitude | 13.98 (0.06) | 13.98 (0.06) | |||
| u magnitude | 13.16 (0.003) | ||||
| g magnitude | 13.67 (0.005) | 13.27 (0.02) | |||
| r magnitude | 13.61 (0.003) | 13.74 (0.04) | |||
| i magnitude | 13.92 (0.003) | 13.90 (0.06) | |||
| z magnitude | 14.19 (0.004) | ||||
| G magnitude | 13.42 (0.003) | 13.44 (0.0004) | 13.42 (0.003) | ||
| BP magnitude | 13.32 (0.003) | 13.27 (0.006) | |||
| RP magnitude | 13.63 (0.004) | 13.63 (0.002) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | 14.81 (0) | ||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.068 | ||||
* 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.