All names: WISEA J022852.20-552439.3, Gaia DR2 4739925465485273856, Gaia DR3 4739925465485273856, WISE J022852.23-552438.9
| Parameter | Unit | Vincent et al. 2024 | Simbad |
|---|---|---|---|
| Right ascension | 02 28 52.31 | 02 28 52.19 (0.04) | |
| Declination | -55 24 39.03 | -55 24 39.22 (0.05) | |
| Spectral type | DB | DB | |
| Effective temperature | [K] | 15614.0 (333) | |
| log(g) | [cgs] | 7.94 (0.03) | |
| Mass | [M☉] | 0.558 (0.02) | |
| log(Luminosity) | [L☉] | ||
| Cooling age | [Gyr] | ||
| log(H/He) | |||
| log(C/He) | |||
| log(Ca/He) | |||
| log(Ca/H) | |||
| Parallax | [mas] | 7.77 | 7.77 (0.05) |
| Distance | [pc] | 128.67 | 128.68 (0.8) |
| Composition | |||
| Proper motion (right ascension) | [mas/yr] | 61.015 (0.05) | |
| Proper motion (declination) | [mas/yr] | 11.928 (0.07) | |
| Variability | |||
| Magnetic | |||
| Bd | [MG] | ||
| Infrared excess (disk) | |||
| Binarity | |||
| B magnitude | |||
| V magnitude | |||
| R magnitude | |||
| I magnitude | |||
| J magnitude | |||
| H magnitude | |||
| K magnitude | |||
| u magnitude | |||
| g magnitude | |||
| r magnitude | |||
| i magnitude | |||
| z magnitude | |||
| G magnitude | 16.62 | 16.62 (0.003) | |
| 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.