All names: Gaia DR2 2119031692986023168, O11J184356+453757, Gaia DR3 2119031692986023168, 2MASS J18435555+4537570, TIC 123228651, UCAC4 679-063773
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 18 43 56.00 | 18 43 55.56 (0.03) | ||
| Declination | 45 37 57.00 | 45 37 56.93 (0.04) | ||
| Spectral type | sd | |||
| 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 (0.06) | 0.41 (0.04) | |
| Distance | [pc] | 2579.31 (377) | 2466.09 (240) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.525 (0.1) | -3.646 (0.04) | |
| Proper motion (declination) | [mas/yr] | -0.792 (0.1) | -0.513 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.84 (0.03) | |||
| V magnitude | 16.23 (0.01) | |||
| R magnitude | 16.31 (0.09) | |||
| I magnitude | ||||
| J magnitude | 16.75 (0.1) | 16.75 (0.1) | ||
| H magnitude | 16.90 | |||
| K magnitude | 16.79 | |||
| u magnitude | ||||
| g magnitude | 15.83 (0.01) | |||
| r magnitude | 16.45 (0.01) | |||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 16.14 (0.002) | 16.11 (0.003) | ||
| BP magnitude | 15.93 (0.009) | |||
| RP magnitude | 16.34 (0.006) | |||
| Pan g magnitude | 15.98 (0.003) | |||
| Pan r magnitude | 16.35 (0.003) | |||
| Pan i magnitude | 16.68 (0.003) | |||
| Pan z magnitude | 16.94 (0.004) | |||
| Pan y magnitude | 17.15 (0.007) | |||
| E(B-V) | 0.034 | |||
* 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.