All names: Gaia DR3 2317778139213871616, 2MASS J00393049-3025073, 2QZ J003930.3-302507, GALEX J003930.4-302506, Gaia DR2 2317778139213871616, TIC 251880133
| Parameter | Unit | Stilism | Simbad |
|---|---|---|---|
| Right ascension | 00 39 30.39 (0.09) | ||
| Declination | -30 25 06.83 (0.08) | ||
| 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] | 0.24 (0.1) | |
| Distance | [pc] | 4140.79 (2128) | |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 10.795 (0.1) | |
| Proper motion (declination) | [mas/yr] | 0.491 (0.1) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | 18.50 | ||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | 17.08 (0.2) | ||
| H magnitude | 16.69 (0.3) | ||
| K magnitude | 15.98 (0.3) | ||
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 17.97 (0.003) | ||
| BP magnitude | |||
| RP magnitude | |||
| Pan g magnitude | |||
| Pan r magnitude | |||
| Pan i magnitude | |||
| Pan z magnitude | |||
| Pan y magnitude | |||
| E(B-V) | 0.006 | ||
* 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.