All names: SDSS J082519.71+504920.1, NLTT 19458, LSPM J0825+5049, SDSS J082519.70+504920.1, WD 0821+509, Gaia DR2 1028072371590379136, USNO-B1.0 1408-00202734, SDSS J082519.70+504920.0, LP 124-32
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 08 25 19.72 (0.2) | |
| Declination | 50 49 20.15 (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] | 20.90 (0.2) |
| Distance | [pc] | 47.84 (0.5) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -328.81 (0.3) |
| Proper motion (declination) | [mas/yr] | -329.423 (0.2) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 20.10 | |
| V magnitude | ||
| R magnitude | 18.20 | |
| I magnitude | ||
| J magnitude | 17.08 (0.04) | |
| H magnitude | 16.83 (0.04) | |
| K magnitude | 16.74 (0.04) | |
| u magnitude | 21.14 (0.09) | |
| g magnitude | 19.37 (0.01) | |
| r magnitude | 18.43 (0.008) | |
| i magnitude | 18.08 (0.008) | |
| z magnitude | 17.99 (0.02) | |
| G magnitude | 18.50 (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.