All names: UCAC4 330-201738, WISEA J203825.89-240819.3, Gaia DR2 6854519520946887040, WISE J203825.89-240819.2, GALEX J203825.9-240818, TIC 212297777, EC 20354-2418, 2MASS J20382587-2408191
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 20 38 25.90 (67) | |
| Declination | -24 08 19.02 (122) | |
| Spectral type | DB | |
| 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] | |
| Distance | [pc] | |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 21.7 (3) |
| Proper motion (declination) | [mas/yr] | -21.1 (4) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 15.91 | |
| V magnitude | 15.83 | |
| R magnitude | 15.94 (0.3) | |
| I magnitude | ||
| J magnitude | 13.22 (0.03) | |
| H magnitude | 12.66 (0.03) | |
| K magnitude | 12.43 (0.03) | |
| u magnitude | ||
| g magnitude | ||
| r magnitude | ||
| i magnitude | ||
| z magnitude | ||
| G magnitude | 15.87 (0.01) | |
| 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.