All names: WDJ192034.41-471529.44, BPS CS 22947-0190, UCAC4 214-181473, 2MASS J19203442-4715294, Gaia EDR3 6663138531316128640, Gaia DR2 6663138531316128640, WDJ192034.41-471529.43, Gaia DR3 6663138531316128640
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|
| Right ascension | 19 20 34.45 (0.03) | 19 20 34.45 | 19 20 34.45 | 19 20 34.41 (0.03) | 19 20 34.45 | ||
| Declination | -47 15 30.11 (0.03) | -47 15 30.09 | -47 15 30.11 | -47 15 29.44 (0.03) | -47 15 30.09 | ||
| Spectral type | DA | DA | |||||
| Effective temperature | [K] | 19109.0 (269) | |||||
| log(g) | [cgs] | 8.01 (0.01) | |||||
| Mass | [M☉] | 0.629 (0.009) | |||||
| log(Luminosity) | [L☉] | ||||||
| Cooling age | [Gyr] | ||||||
| log(H/He) | |||||||
| log(C/He) | |||||||
| log(Ca/He) | |||||||
| log(Ca/H) | |||||||
| Parallax | [mas] | 14.47 (0.04) | 14.47 (0.07) | 14.47 | 14.47 (0.04) | 14.47 (0.07) | |
| Distance | [pc] | 69.10 (0.2) | 69.11 (0.3) | 69.10 | 69.10 (0.2) | 69.11 (0.3) | |
| Composition | |||||||
| Proper motion (right ascension) | [mas/yr] | 23.31072595 (0.04) | 23.32161577 (0.1) | 23.311 (0.04) | 23.32161577 | ||
| Proper motion (declination) | [mas/yr] | -42.19332623 (0.03) | -42.14909261 (0.06) | -42.193 (0.03) | -42.14909261 | ||
| Variability | |||||||
| Magnetic | |||||||
| Bd | [MG] | ||||||
| Infrared excess (disk) | |||||||
| Binarity | |||||||
| B magnitude | 15.00 (0.03) | ||||||
| V magnitude | 15.14 (0.01) | ||||||
| R magnitude | 15.49 (0.09) | ||||||
| I magnitude | |||||||
| J magnitude | 15.58 (0.06) | ||||||
| H magnitude | 15.45 (0.1) | ||||||
| K magnitude | 15.71 (0.2) | ||||||
| u magnitude | |||||||
| g magnitude | 14.92 (0.01) | ||||||
| r magnitude | 15.29 (0.01) | ||||||
| i magnitude | |||||||
| z magnitude | |||||||
| G magnitude | 15.09 (0.002) | 15.10 | 15.09 | 15.09 (0.003) | 15.10 | ||
| BP magnitude | 15.01 (0.002) | 14.98 | 14.98 | ||||
| RP magnitude | 15.26 (0.001) | 15.26 | 15.26 | ||||
| Pan g magnitude | |||||||
| Pan r magnitude | |||||||
| Pan i magnitude | |||||||
| Pan z magnitude | |||||||
| Pan y magnitude | |||||||
| E(B-V) | 0.006 | ||||||
* 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.