All names: SDSS J102356.09+634833.7, SDSS J102356.10+634833.7, WD 1020+640, Gaia DR2 1052563683861162880, SDSS J102356.10+634833.8, LP 62-159, NLTT 24183, USNO-B1.0 1538-00175532, LSPM J1023+6348
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 10 23 56.12 (0.08) | |
| Declination | 63 48 33.82 (0.1) | |
| Spectral type | DA | |
| 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] | 16.83 (0.1) |
| Distance | [pc] | 59.43 (0.5) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -339.73 (0.1) |
| Proper motion (declination) | [mas/yr] | -217.483 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 18.40 | |
| V magnitude | ||
| R magnitude | 17.80 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 18.92 (0.02) | |
| g magnitude | 18.11 (0.006) | |
| r magnitude | 17.79 (0.006) | |
| i magnitude | 17.65 (0.007) | |
| z magnitude | 17.62 (0.02) | |
| G magnitude | 17.82 (0.001) | |
| 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.