All names: TIC 271040548, KeplerJ19380+4649, Gaia DR3 2128531679610988672, LAMOST J193801.64+464944.6, Gaia DR2 2128531679610988672, 2MASS J19380163+4649446, EQ J1938.0+4649, KIC 9957741
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 19 38 01.60 | 19 38 01.63 (0.03) | ||
| Declination | 46 49 45.00 | 46 49 44.41 (0.03) | ||
| Spectral type | He-sdOB | sdOBHe | ||
| Effective temperature | [K] | 40402.0 (188) | ||
| log(g) | [cgs] | 5.10 (0.05) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.11 (0.04) | 0.07 (0.03) | |
| Distance | [pc] | 9451.80 (3368) | 13550.14 (5471) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -2.87 (0.07) | -2.724 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.321 (0.07) | -3.402 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 16.37 (0.1) | 16.37 (0.1) | ||
| H magnitude | 15.91 | 15.91 | ||
| K magnitude | 16.01 | 16.01 | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 15.98 (0.001) | 15.95 (0.003) | ||
| BP magnitude | 15.79 (0.007) | |||
| RP magnitude | 16.14 (0.004) | |||
| Pan g magnitude | 15.84 (0.002) | |||
| Pan r magnitude | 16.17 (0.003) | |||
| Pan i magnitude | 16.49 (0.003) | |||
| Pan z magnitude | 16.75 (0.004) | |||
| Pan y magnitude | 16.89 (0.005) | |||
| E(B-V) | 0.065 | |||
* 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.