All names: Gaia DR2 4529250890053323648, SDSS J182646.37+214925.9, Gaia DR3 4529250894356209152, SDSSJ182646.37+214925.9, 2MASS J18264636+2149259, TIC 342575852
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 26 46.37 | 18 26 46.37 (0.02) | ||
| Declination | 21 49 25.90 | 21 49 26.00 (0.03) | ||
| 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] | 0.39 (0.05) | 0.42 (0.04) | |
| Distance | [pc] | 2577.32 (313) | 2376.99 (238) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.513 (0.04) | -1.692 (0.03) | |
| Proper motion (declination) | [mas/yr] | -0.769 (0.08) | -1.378 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 15.23 (0.05) | 15.23 (0.05) | ||
| H magnitude | 14.96 (0.06) | 14.96 (0.06) | ||
| K magnitude | 15.03 (0.1) | 15.03 (0.1) | ||
| u magnitude | 16.54 (0.007) | 16.54 (0.007) | ||
| g magnitude | 16.24 (0.004) | 16.24 (0.004) | ||
| r magnitude | 16.24 (0.004) | 16.24 (0.004) | ||
| i magnitude | 16.23 (0.004) | 16.23 (0.004) | ||
| z magnitude | 16.23 (0.008) | 16.23 (0.008) | ||
| G magnitude | 16.18 (0.0006) | 16.17 (0.003) | ||
| BP magnitude | 16.26 (0.003) | |||
| RP magnitude | 15.91 (0.002) | |||
| Pan g magnitude | 16.28 (0.003) | |||
| Pan r magnitude | 16.23 (0.004) | |||
| Pan i magnitude | 16.26 (0.003) | |||
| Pan z magnitude | 16.29 (0.006) | |||
| Pan y magnitude | 16.25 (0.003) | |||
| E(B-V) | 0.118 | |||
* 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.