All names: Gaia DR2 2101051924795806464, KIC 4829241, Gaia DR3 2101051924795806464, TIC 122139438, EQ J1919.4+3958, LAMOST J191927.67+395839.30, 2MASS J19192767+3958392, LAMOST J191927.67+395839.2
| Parameter | Unit | Stilism | Guo et al. 2015 | Zhao et al. 2013 | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|---|
| Right ascension | 19 19 27.67 | 19 19 27.72 | 19 19 27.69 (0.03) | |||
| Declination | 39 58 39.30 | 39 58 40.21 | 39 58 39.47 (0.04) | |||
| Spectral type | DAZ | DA | DA3 | |||
| Effective temperature | [K] | 20221.0 (320) | 20376.0 (345) | 17516.0 (197) | ||
| log(g) | [cgs] | 7.89 (0.05) | 7.93 (0.06) | 7.66 (0.01) | ||
| Mass | [M☉] | 0.57 (0.03) | 0.59 (0.03) | 0.449 (0.007) | ||
| log(Luminosity) | [L☉] | |||||
| Cooling age | [Gyr] | 0.0540 (0.008) | ||||
| log(H/He) | ||||||
| log(C/He) | ||||||
| log(Ca/He) | ||||||
| log(Ca/H) | ||||||
| Parallax | [mas] | 9.42 | 9.42 (0.04) | |||
| Distance | [pc] | 106.11 | 106.11 (0.4) | |||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 22.18 (0.04) | ||||
| Proper motion (declination) | [mas/yr] | 46.444 (0.05) | ||||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 15.94 (0.09) | |||||
| H magnitude | 15.99 (0.2) | |||||
| K magnitude | 15.45 (0.2) | |||||
| u magnitude | ||||||
| g magnitude | ||||||
| r magnitude | ||||||
| i magnitude | ||||||
| z magnitude | ||||||
| G magnitude | 15.68 | 15.68 (0.003) | ||||
| BP magnitude | ||||||
| RP magnitude | ||||||
| Pan g magnitude | ||||||
| Pan r magnitude | ||||||
| Pan i magnitude | ||||||
| Pan z magnitude | ||||||
| Pan y magnitude | ||||||
| E(B-V) | 0.017 | |||||
* 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.