All names: LSPM J0805+0724, NLTT 18937, Gaia DR2 3097756127294671488, SDSS J080558.83+072448.4, USNO-B1.0 0974-00190184, SDSS J080558.84+072448.5, SDSS J080558.82+072447.7, SDSS J080558.83+072447.8, LP 544-22
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 08 05 58.85 (0.3) | |
| Declination | 07 24 49.19 (0.2) | |
| Spectral type | DQpec | |
| 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] | 12.80 (0.4) |
| Distance | [pc] | 78.13 (2) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -40.975 (0.6) |
| Proper motion (declination) | [mas/yr] | -235.623 (0.4) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 19.40 | |
| V magnitude | ||
| R magnitude | 18.80 | |
| I magnitude | ||
| J magnitude | ||
| H magnitude | ||
| K magnitude | ||
| u magnitude | 20.45 (0.06) | |
| g magnitude | 19.55 (0.01) | |
| r magnitude | 18.89 (0.01) | |
| i magnitude | 18.69 (0.01) | |
| z magnitude | 18.66 (0.03) | |
| G magnitude | 18.98 (0.003) | |
| 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.