All names: UCAC4 800-027767, HS 1926+6947, 2MASS J19262507+6953112, GALEX J192625.2+695311, Gaia DR2 2261817262264874752, HS1926+6947, TIC 259126140, Gaia DR3 2261817262264874752
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 26 25.21 | 19 26 25.16 (0.03) | ||
| Declination | 69 53 11.29 | 69 53 11.45 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 25500.0 (1300) | ||
| log(g) | [cgs] | 5.20 (0.4) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.64 (0.04) | 0.62 (0.03) | |
| Distance | [pc] | 1571.09 (106) | 1611.34 (75) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.063 (0.09) | -3.013 (0.04) | |
| Proper motion (declination) | [mas/yr] | 3.343 (0.1) | 3.549 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.77 (0.04) | |||
| V magnitude | 15.91 (0.01) | |||
| R magnitude | 15.96 (0.3) | |||
| I magnitude | ||||
| J magnitude | 16.05 (0.09) | 16.05 (0.09) | ||
| H magnitude | 16.19 (0.2) | 16.19 (0.2) | ||
| K magnitude | 16.98 | |||
| u magnitude | ||||
| g magnitude | 15.71 (0.01) | |||
| r magnitude | 16.00 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.83 (0.0009) | 15.81 (0.003) | ||
| BP magnitude | 15.75 (0.007) | |||
| RP magnitude | 15.89 (0.003) | |||
| Pan g magnitude | 15.74 (0.01) | |||
| Pan r magnitude | 15.97 (0.004) | |||
| Pan i magnitude | 16.22 (0.003) | |||
| Pan z magnitude | 16.41 (0.007) | |||
| Pan y magnitude | 16.57 (0.01) | |||
| E(B-V) | 0.080 | |||
* 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.