All names: TIC 198626151, 2MASS J19081765+1149195, KPD 1905+1144, UCAC2 35992374, Gaia DR2 4312741593012039808, Gaia DR3 4312741593012039808, KPD1905+1144, UCAC4 510-099071
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 08 17.66 | 19 08 17.64 (0.02) | ||
| Declination | 11 49 19.71 | 11 49 19.41 (0.02) | ||
| 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] | 1.95 (0.04) | 1.92 (0.02) | |
| Distance | [pc] | 513.11 (9) | 519.62 (6) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -6.811 (0.06) | -6.834 (0.02) | |
| Proper motion (declination) | [mas/yr] | 7.096 (0.05) | 7.04 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.77 (0.02) | |||
| V magnitude | 14.61 (0.01) | |||
| R magnitude | 14.67 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.44 (0.06) | 14.44 (0.06) | ||
| H magnitude | 14.51 (0.06) | 14.51 (0.06) | ||
| K magnitude | 14.06 | |||
| u magnitude | ||||
| g magnitude | 14.65 (0.01) | |||
| r magnitude | 14.61 (0.05) | |||
| i magnitude | 14.79 (0.05) | |||
| z magnitude | ||||
| G magnitude | 14.57 (0.0005) | 14.55 (0.003) | ||
| BP magnitude | 14.59 (0.005) | |||
| RP magnitude | 14.41 (0.002) | |||
| Pan g magnitude | 14.63 (0.002) | |||
| Pan r magnitude | 14.66 (0.006) | |||
| Pan i magnitude | 14.77 (0.005) | |||
| Pan z magnitude | 14.89 (0.003) | |||
| Pan y magnitude | 14.96 (0.004) | |||
| E(B-V) | 0.165 | |||
* 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.