All names: Gaia DR3 2160223723591961728, Gaia DR2 2160223723591961728, SDSS J183942.57+631657.6
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 18 39 42.55 | 18 39 42.59 (0.1) | |
| Declination | 63 16 58.59 | 63 16 57.10 (0.1) | |
| Spectral type | DA | DA | |
| Effective temperature | [K] | 17490.0 (1185) | |
| log(g) | [cgs] | 8.03 (0.07) | |
| Mass | [M☉] | 0.637 (0.06) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 3.41 | 3.41 (0.1) |
| Distance | [pc] | 293.18 | 293.19 (10) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | -17.751 (0.2) | |
| Proper motion (declination) | [mas/yr] | 93.064 (0.1) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | 18.56 (0.02) | ||
| g magnitude | 18.30 (0.02) | ||
| r magnitude | 18.62 (0.01) | ||
| i magnitude | 18.88 (0.02) | ||
| z magnitude | 19.21 (0.05) | ||
| G magnitude | 18.46 | 18.46 (0.003) | |
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | |||
* 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.