All names: Gaia DR2 2318670186741429120, GALEX J002740.4-294208, Gaia EDR3 2318670186741429120, Gaia DR3 2318670186741429120, 2QZ J002740.4-294208
| Parameter | Unit | Gaia EDR3 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 00 27 40.50 (0.5) | 00 27 40.48 (0.5) | ||
| Declination | -29 42 08.72 (0.4) | -29 42 08.32 (0.4) | ||
| 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] | 1.50 (0.6) | 1.50 (0.6) | |
| Distance | [pc] | 666.58 (248) | 666.58 (248) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 22.465 (0.6) | 22.465 (0.6) | |
| Proper motion (declination) | [mas/yr] | -24.993 (0.6) | -24.993 (0.6) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 19.96 | |||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | ||||
| H magnitude | ||||
| K magnitude | ||||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 20.17 (0.007) | 20.17 (0.007) | ||
| BP magnitude | 20.17 (0.06) | |||
| RP magnitude | 20.48 (0.1) | |||
| 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.