All names: Gaia EDR3 2499088263764681344, WISE J025241.34+005501.1, WISEA J025241.35+005500.9, SDSS J025241.33+005500.9, WD 0250+007, SDSS J025241.33+005500.8
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|
| Right ascension | 02 52 41.32 (0.7) | 02 52 41.34 | 02 52 41.33 (60) | 02 52 41.40 | ||
| Declination | 00 55 00.77 (1) | 00 55 00.92 | 00 55 00.86 (56) | 00 54 56.88 | ||
| Spectral type | D?+M? | WD M | ||||
| 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] | -1.56 (0.8) | ||||
| Distance | [pc] | |||||
| Composition | ||||||
| Proper motion (right ascension) | [mas/yr] | 1.644268823 (1) | 1.0 (4) | |||
| Proper motion (declination) | [mas/yr] | -2.76063647 (1) | -2.0 (4) | |||
| Variability | ||||||
| Magnetic | ||||||
| Bd | [MG] | |||||
| Infrared excess (disk) | ||||||
| Binarity | ||||||
| B magnitude | ||||||
| V magnitude | ||||||
| R magnitude | ||||||
| I magnitude | ||||||
| J magnitude | 17.19 (0.02) | |||||
| H magnitude | 16.68 (0.02) | |||||
| K magnitude | 16.47 (0.04) | |||||
| u magnitude | 21.26 (0.09) | 21.26 (0.09) | 21.63 | |||
| g magnitude | 20.24 (0.02) | 20.24 (0.02) | 20.24 | |||
| r magnitude | 19.53 (0.01) | 19.52 (0.01) | 19.64 | |||
| i magnitude | 18.87 (0.01) | 18.87 (0.01) | 18.94 | |||
| z magnitude | 18.40 (0.02) | 18.40 (0.02) | 18.44 | |||
| G magnitude | 20.12 (0.3) | |||||
| BP magnitude | 19.77 (0.3) | |||||
| RP magnitude | 18.55 (0.09) | |||||
| Pan g magnitude | 20.26 (0.03) | |||||
| Pan r magnitude | 19.66 (0.01) | |||||
| Pan i magnitude | 19.01 (0.01) | |||||
| Pan z magnitude | 18.61 (0.01) | |||||
| Pan y magnitude | 18.37 (0.02) | |||||
| E(B-V) | ||||||
* 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 (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.