All names: GALEX J031909.8+002158, WIRED J031909.94+002158.8, WD 0316+001, SDSS J031909.94+002158.8, WDS J03192+0022B, Gaia DR2 3265943812493637120, Gaia EDR3 3265943812493637120, ** SKF 1680B, Gaia DR3 3265943812493637120
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 19 09.94 (0.7) | 03 19 09.93 | 03 19 09.94 (0.9) | 03 19 09.94 | 03 19 09.95 (0.7) | 03 19 09.94 | 03 19 09.98 | 03 19 09.94 | ||
| Declination | 00 21 58.79 (0.6) | 00 21 58.90 | 00 21 58.79 (1) | 00 21 58.79 | 00 21 58.89 (0.6) | 00 21 58.83 | 00 21 57.24 | 00 21 58.82 | ||
| Spectral type | DA+M | DAB | DA+M | DAB: d | DA+M | |||||
| Effective temperature | [K] | 28718.0 (1548) | 28932.0 (2209) | 27769.0 (2463) | ||||||
| log(g) | [cgs] | 7.68 (0.3) | 6.14 (0.4) | 6.02 (0.4) | ||||||
| Mass | [M☉] | 0.49 (0.2) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 2.36 (0.8) | 2.36 (0.8) | |||||||
| Distance | [pc] | 424.11 (148) | 424.11 (148) | |||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.712650395 (1) | -0.713 (1) | |||||||
| Proper motion (declination) | [mas/yr] | -6.548007999 (1) | -6.548 (1) | |||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | WDMS | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 20.38 (0.05) | 20.29 | 20.26 (0.07) | 20.29 (0.06) | 20.29 | 20.30 (0.06) | ||||
| g magnitude | 20.26 (0.02) | 20.24 | 20.17 (0.02) | 20.24 (0.05) | 20.24 | 20.25 (0.05) | ||||
| r magnitude | 20.60 (0.03) | 20.67 | 20.51 (0.04) | 20.67 (0.3) | 20.67 | 20.66 (0.3) | ||||
| i magnitude | 20.71 (0.04) | 20.28 | 20.08 (0.04) | 20.28 (1) | 20.28 | 20.28 (1) | ||||
| z magnitude | 21.50 (0.3) | 20.82 | 20.72 (0.3) | 20.82 (1) | 20.82 | 20.81 (1) | ||||
| G magnitude | 20.48 | 20.55 | 20.48 (0.01) | |||||||
| BP magnitude | ||||||||||
| RP magnitude | ||||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.067 | |||||||||
* 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.