All names: GALEX J181948.3+332209, Gaia DR3 4592825172063276288, O11J181948+332209, TIC 23234885, LAMOST J181948.31+332209.6, Gaia DR2 4592825172063276288, 2MASS J18194832+3322100
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 19 48.00 | 18 19 48.32 (0.03) | ||
| Declination | 33 22 09.00 | 33 22 09.73 (0.03) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 28380.0 (180) | ||
| log(g) | [cgs] | 5.44 (0.02) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.27 (0.06) | 0.28 (0.04) | |
| Distance | [pc] | 3660.32 (757) | 3561.25 (491) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -0.722 (0.09) | -0.525 (0.04) | |
| Proper motion (declination) | [mas/yr] | -9.226 (0.1) | -9.061 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 17.02 (0.1) | 17.02 (0.1) | ||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.44 (0.001) | 16.42 (0.003) | ||
| BP magnitude | 16.26 (0.004) | |||
| RP magnitude | 16.64 (0.007) | |||
| Pan g magnitude | 20.98 (0) | |||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.050 | |||
* 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.