All names: WD 2231-012, WISE J223401.59-010016.8, SDSS J223401.66-010016.3, SDSS J223401.65-010016.1, WIRED J223401.66-010016.3, WISEA J223401.57-010016.4
| Parameter | Unit | SDSS DR12 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|
| Right ascension | 22 34 01.66 | 22 34 01.66 | 22 34 01.66 | 22 34 01.27 | 22 34 01.66 | |
| Declination | -01 00 16.12 | -01 00 16.12 | -01 00 16.14 | -01 00 11.52 | -01 00 16.30 | |
| Spectral type | DA+M | DA: | DA: | DA+M: | ||
| Effective temperature | [K] | 6646.0 (145) | 6362.0 (58) | |||
| log(g) | [cgs] | 6.84 (0.8) | 5.53 (0.4) | |||
| 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] | -8.8 | ||||
| Proper motion (declination) | [mas/yr] | 2.1 | ||||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | WDMS | |||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 18.63 (0.09) | |||||
| H magnitude | 18.83 (0.2) | |||||
| K magnitude | ||||||
| u magnitude | 20.84 (0.09) | 20.84 (0.09) | 21.07 (0.09) | 21.09 (0.09) | ||
| g magnitude | 19.92 (0.02) | 19.92 (0.02) | 20.29 (0.04) | 20.31 (0.04) | ||
| r magnitude | 19.60 (0.02) | 19.60 (0.02) | 20.08 (0.02) | 20.08 (0.02) | ||
| i magnitude | 19.48 (0.03) | 19.48 (0.03) | 20.01 (0.03) | 20.00 (0.03) | ||
| z magnitude | 19.41 (0.09) | 19.41 (0.09) | 19.75 (0.09) | 19.74 (0.09) | ||
| G magnitude | ||||||
| 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.