All names: UCAC4 739-058769, LAMOST J185947.10+574032.9, 2MASS J18594708+5740330, Gaia DR3 2153548180479601280, TIC 377053047, GALEX J185947.0+574032, Gaia DR2 2153548180479601280, HS 1858+5736, HS1858+5736
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 59 47.11 | 18 59 47.09 (0.02) | ||
| Declination | 57 40 32.99 | 57 40 32.97 (0.02) | ||
| Spectral type | sdB+MS | sdO+F5V | ||
| 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] | 0.41 (0.02) | 0.37 (0.02) | |
| Distance | [pc] | 2435.46 (137) | 2730.75 (125) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.896 (0.05) | -3.911 (0.02) | |
| Proper motion (declination) | [mas/yr] | -1.066 (0.04) | -0.99 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.99 (0.04) | |||
| V magnitude | 14.97 (0.05) | |||
| R magnitude | 15.01 (0.08) | |||
| I magnitude | ||||
| J magnitude | 14.35 (0.03) | 14.35 (0.03) | ||
| H magnitude | 14.24 (0.04) | 14.24 (0.04) | ||
| K magnitude | 14.22 (0.06) | 14.22 (0.06) | ||
| u magnitude | ||||
| g magnitude | 14.86 (0.03) | |||
| r magnitude | 14.94 (0.05) | |||
| i magnitude | 14.99 (0.03) | |||
| z magnitude | ||||
| G magnitude | 14.82 (0.0005) | 14.81 (0.003) | ||
| BP magnitude | 14.85 (0.004) | |||
| RP magnitude | 14.66 (0.002) | |||
| Pan g magnitude | 14.87 (0.002) | |||
| Pan r magnitude | 14.93 (0.003) | |||
| Pan i magnitude | 14.99 (0.002) | |||
| Pan z magnitude | 15.09 (0.003) | |||
| Pan y magnitude | 15.14 (0.003) | |||
| E(B-V) | 0.038 | |||
* 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.