All names: WD 0259+371, SDSS J030247.65+372125.9, GALEX J030247.7+372126, SDSS J030247.65+372125.8, [SGR2010] J0302+3721, Gaia EDR3 142114798468668416, Gaia DR2 142114798468668416, TIC 186629686, 2MASS J03024765+3721258, Gaia DR3 142114798468668416
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 03 02 47.65 (0.2) | 03 02 47.65 | 03 02 47.65 (0.3) | 03 02 47.66 (0.2) | 03 02 47.88 | |||
| Declination | 37 21 25.89 (0.2) | 37 21 25.88 | 37 21 25.90 (0.2) | 37 21 25.97 (0.2) | 37 21 20.88 | |||
| Spectral type | D+M1 | WD+M1 | ||||||
| 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] | 0.70 (0.2) | -0.84 (0.4) | 0.70 (0.2) | ||||
| Distance | [pc] | 1427.20 (416) | 1427.14 (416) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -1.813472493 (0.2) | -2.21289937 (0.5) | -1.813 (0.2) | ||||
| Proper motion (declination) | [mas/yr] | -4.940675019 (0.2) | -4.989615315 (0.4) | -4.941 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.15 (0.08) | |||||||
| H magnitude | 15.71 (0.1) | |||||||
| K magnitude | 15.46 (0.1) | |||||||
| u magnitude | 20.62 (0.06) | 20.62 (0.07) | 20.62 | |||||
| g magnitude | 19.59 (0.01) | 19.59 (0.01) | 19.59 | |||||
| r magnitude | 18.46 (0.009) | 18.45 (0.008) | 18.45 | |||||
| i magnitude | 17.77 (0.007) | 17.75 (0.007) | 17.75 | |||||
| z magnitude | 17.37 (0.01) | 17.36 (0.01) | 17.36 | |||||
| G magnitude | 18.39 (0.04) | 18.38 | 18.39 (0.005) | |||||
| BP magnitude | 19.21 (0.04) | 19.27 | ||||||
| RP magnitude | 17.38 (0.02) | 17.39 | ||||||
| Pan g magnitude | 19.49 (0.01) | |||||||
| Pan r magnitude | 18.49 (0.003) | |||||||
| Pan i magnitude | 17.78 (0.004) | |||||||
| Pan z magnitude | 17.43 (0.005) | |||||||
| Pan y magnitude | 17.23 (0.01) | |||||||
| E(B-V) | 0.107 | |||||||
* 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.