All names: SDSS J081516.84+163316.3, 2MASS J08151676+1633172, LP 424-26, PM J08152+1633, Gaia DR2 655808799925588992, WD 0812+167, USNO-B1.0 1065-00157014, LSPM J0815+1633, NLTT 19193
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 08 15 16.76 (0.2) | |
| Declination | 16 33 16.88 (0.1) | |
| Spectral type | DC | |
| 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] | 13.98 (0.2) |
| Distance | [pc] | 71.54 (1) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | 248.397 (0.4) |
| Proper motion (declination) | [mas/yr] | -104.702 (0.3) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 18.90 | |
| V magnitude | ||
| R magnitude | 17.90 | |
| I magnitude | ||
| J magnitude | 16.78 (0.2) | |
| H magnitude | 16.14 (0.2) | |
| K magnitude | 15.67 (0.3) | |
| u magnitude | 20.81 (0.06) | |
| g magnitude | 19.00 (0.009) | |
| r magnitude | 18.16 (0.007) | |
| i magnitude | 17.84 (0.007) | |
| z magnitude | 17.68 (0.02) | |
| G magnitude | 18.22 (0.002) | |
| BP magnitude | ||
| RP magnitude | ||
| Pan g magnitude | ||
| Pan r magnitude | ||
| Pan i magnitude | ||
| Pan z magnitude | ||
| Pan y magnitude |
* 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 (LANL). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.