WD 0747+439
All names: SDSS J075117.10+434827.2, SDSS J075117.10+434827.1, WD 0747+439, SDSS J075117.09+434827.2, SDSS J075117.09+434827.1, Gaia EDR3 925759447371654272, GALEX J075117.1+434826, Gaia DR2 925759447371654272, Gaia DR3 925759447371654272
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 07 51 17.10 (0.3) | 07 51 17.10 | 07 51 17.10 (0.3) | 07 51 17.10 (0.3) | 07 51 17.10 | 07 51 16.78 | 07 51 17.10 | ||||||
| Declination | 43 48 26.40 (0.2) | 43 48 27.15 | 43 48 26.42 (0.3) | 43 48 27.19 (0.2) | 43 48 27.25 | 43 48 25.20 | 43 48 27.19 | ||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC+MS | ||||||
| Effective temperature | [K] | 9791.0 | 9703.0 | 10223.0 (141) | 10198.0 (113) | ||||||||
| log(g) | [cgs] | 8.20 | 8.13 | 8.37 (0.4) | 9.51 (0.4) | ||||||||
| Mass | [M☉] | 0.725 | 0.661 | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.8559 | 0.8223 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 4.03 (0.3) | 4.18 (0.5) | 4.03 (0.3) | |||||||||
| Distance | [pc] | 247.97 (19) | 239.02 (26) | 247.97 (19) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.706874471 (0.3) | -0.96075652 (0.6) | -0.707 (0.3) | 7.7 | ||||||||
| Proper motion (declination) | [mas/yr] | -49.937263 (0.2) | -50.31257456 (0.5) | -49.937 (0.2) | -52.7 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | ||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.67 (0.03) | 19.67 (0.03) | 19.69 (0.03) | 19.70 | 19.71 (0.03) | ||||||||
| g magnitude | 19.47 (0.01) | 19.46 (0.01) | 19.47 (0.02) | 19.47 | 19.48 (0.02) | ||||||||
| r magnitude | 19.50 (0.02) | 19.50 (0.02) | 19.50 (0.02) | 19.50 | 19.49 (0.02) | ||||||||
| i magnitude | 19.59 (0.02) | 19.59 (0.02) | 19.59 (0.02) | 19.59 | 19.59 (0.02) | ||||||||
| z magnitude | 19.83 (0.09) | 19.83 (0.09) | 19.81 (0.1) | 19.81 | 19.80 (0.1) | ||||||||
| G magnitude | 19.43 (0.04) | 19.47 | 19.43 (0.005) | ||||||||||
| BP magnitude | 19.47 (0.04) | 19.48 | |||||||||||
| RP magnitude | 19.38 (0.06) | 19.25 | |||||||||||
| Pan g magnitude | 19.46 (0.007) | ||||||||||||
| Pan r magnitude | 19.49 (0.007) | ||||||||||||
| Pan i magnitude | 19.67 (0.008) | ||||||||||||
| Pan z magnitude | 19.84 (0.03) | ||||||||||||
| Pan y magnitude | 19.82 (0.04) | ||||||||||||
| E(B-V) | 0.017 | ||||||||||||
* Constant surface field
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