All names: 2QZ J004212.1-271727, USNO-B1.0 0627-00012206, [VV2003] J004212.1-271728, GALEX J004212.0-271727, [VV2006] J004212.1-271728, Gaia DR2 2343173593640455680, Gaia DR3 2343173593640455680
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 00 42 12.08 (0.5) | |
| Declination | -27 17 27.08 (0.5) | |
| 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] | 0.007 (0.7) |
| Proper motion (declination) | [mas/yr] | 0.893 (0.9) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 20.60 | |
| V magnitude | 20.48 | |
| R magnitude | 21.00 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | ||
| g magnitude | ||
| r magnitude | ||
| i magnitude | ||
| z magnitude | ||
| G magnitude | 20.17 (0.007) | |
| 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.