All names: SDSS J120848.81+485308.5, Gaia DR2 1546507325450256512, TIC 53567000, Gaia DR3 1546507325450256512, 2MASS J12084882+4853085, [SGR2010] J1208+4853, WD 1206+491, SDSS J120848.82+485308.5, Gaia EDR3 1546507325450256512
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 08 48.77 (0.07) | 12 08 48.82 | 12 08 48.77 (0.1) | 12 08 48.82 (0.07) | 12 08 48.22 | |||
| Declination | 48 53 08.55 (0.09) | 48 53 08.55 | 48 53 08.55 (0.1) | 48 53 08.58 (0.09) | 48 53 06.72 | |||
| Spectral type | D+M3 | WD+M3 | ||||||
| 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] | 2.23 (0.1) | 1.99 (0.2) | 2.23 (0.1) | ||||
| Distance | [pc] | 448.51 (29) | 503.58 (51) | 448.51 (29) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -33.08855765 (0.07) | -33.12196251 (0.2) | -33.089 (0.07) | ||||
| Proper motion (declination) | [mas/yr] | -2.262311235 (0.1) | -2.098249668 (0.2) | -2.262 (0.1) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | yes | |||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 15.52 (0.06) | |||||||
| H magnitude | 14.88 (0.06) | |||||||
| K magnitude | 14.62 (0.08) | |||||||
| u magnitude | 21.74 (0.2) | 21.76 (0.2) | 21.76 | |||||
| g magnitude | 19.98 (0.02) | 19.97 (0.02) | 19.97 | |||||
| r magnitude | 18.88 (0.01) | 18.88 (0.01) | 18.88 | |||||
| i magnitude | 17.55 (0.006) | 17.56 (0.007) | 17.56 | |||||
| z magnitude | 16.85 (0.01) | 16.88 (0.01) | 16.88 | |||||
| G magnitude | 18.26 (0.03) | 18.31 | 18.26 (0.003) | |||||
| BP magnitude | 19.55 (0.03) | 19.52 | ||||||
| RP magnitude | 17.09 (0.006) | 17.09 | ||||||
| Pan g magnitude | 19.83 (0.01) | |||||||
| Pan r magnitude | 18.80 (0.006) | |||||||
| Pan i magnitude | 17.57 (0.003) | |||||||
| Pan z magnitude | 17.00 (0.004) | |||||||
| Pan y magnitude | 16.70 (0.006) | |||||||
| E(B-V) | 0.017 | |||||||
* 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.