All names: WD 1202+626, SDSS J120439.54+622216.4, SDSS J120439.53+622216.3, NLTT 29503, USNO-B1.0 1523-00240716, SDSS J120439.53+622216.4, LSPM J1204+6222, Gaia DR2 1582945145090883200, LP 64-426
| Parameter | Unit | Simbad |
|---|---|---|
| Right ascension | 12 04 39.54 (0.1) | |
| Declination | 62 22 16.55 (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] | 19.64 (0.2) |
| Distance | [pc] | 50.91 (0.4) |
| Composition | ||
| Proper motion (right ascension) | [mas/yr] | -24.436 (0.4) |
| Proper motion (declination) | [mas/yr] | -154.597 (0.3) |
| Variability | ||
| Magnetic | ||
| Bd | [MG] | |
| Infrared excess (disk) | ||
| Binarity | ||
| B magnitude | 19.80 | |
| V magnitude | ||
| R magnitude | 18.40 | |
| I magnitude | ||
| J magnitude | 17.07 (0.04) | |
| H magnitude | 16.86 (0.04) | |
| K magnitude | 16.80 (0.04) | |
| u magnitude | 21.01 (0.09) | |
| g magnitude | 19.23 (0.01) | |
| r magnitude | 18.42 (0.008) | |
| i magnitude | 18.11 (0.009) | |
| z magnitude | 18.03 (0.03) | |
| G magnitude | 18.48 (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.