SDSS J091750.63+415646.1
All names: GALEX J091750.6+415646, SDSS J091750.64+415646.1, Gaia EDR3 815950774428322944, Gaia DR3 815950774428322944, USNO-A2.0 1275-07486125, Gaia DR2 815950774428322944, SDSS J091750.63+415646.1, WD 0914+421, SDSS J091750.64+415646.2
| 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 | 09 17 50.61 (0.2) | 09 17 50.64 | 09 17 50.62 (0.3) | 09 17 50.64 (0.2) | 09 17 50.64 | 09 17 50.23 | 09 17 50.64 | ||||||
| Declination | 41 56 46.18 (0.2) | 41 56 46.11 | 41 56 46.17 (0.3) | 41 56 46.05 (0.2) | 41 56 46.16 | 41 56 40.92 | 41 56 46.18 | ||||||
| Spectral type | DC: | DC: | DC | DC: | DC: | DC:DB:DC | DC | ||||||
| Effective temperature | [K] | 10846.0 | 11246.0 | 12026.0 (327) | 11798.0 (295) | ||||||||
| log(g) | [cgs] | 7.97 | 7.94 | 7.77 (0.4) | 7.81 (0.3) | ||||||||
| Mass | [M☉] | 0.587 | 0.55 | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.4706 | 0.4219 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 2.75 (0.3) | 3.12 (0.4) | 2.75 (0.3) | |||||||||
| Distance | [pc] | 363.87 (42) | 320.02 (40) | 363.87 (42) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -20.04083385 (0.3) | -19.14066895 (0.5) | -20.041 (0.3) | -18.2 | ||||||||
| Proper motion (declination) | [mas/yr] | 7.573866538 (0.3) | 7.506427763 (0.5) | 7.574 (0.3) | 10.8 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 18.50 (0.3) | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.60 (0.3) | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.46 (0.03) | 19.46 (0.03) | 19.45 (0.03) | 19.45 | 19.45 (0.03) | ||||||||
| g magnitude | 19.33 (0.01) | 19.33 (0.01) | 19.34 (0.02) | 19.34 | 19.34 (0.02) | ||||||||
| r magnitude | 19.51 (0.01) | 19.51 (0.01) | 19.51 (0.02) | 19.51 | 19.51 (0.02) | ||||||||
| i magnitude | 19.68 (0.02) | 19.68 (0.02) | 19.69 (0.02) | 19.69 | 19.69 (0.02) | ||||||||
| z magnitude | 19.89 (0.07) | 19.89 (0.07) | 19.90 (0.07) | 19.90 | 19.90 (0.07) | ||||||||
| G magnitude | 19.42 (0.03) | 19.47 | 19.42 (0.004) | ||||||||||
| BP magnitude | 19.50 (0.03) | 19.38 | |||||||||||
| RP magnitude | 19.38 (0.05) | 19.40 | |||||||||||
| Pan g magnitude | 19.36 (0.02) | ||||||||||||
| Pan r magnitude | 19.51 (0.02) | ||||||||||||
| Pan i magnitude | 19.72 (0.009) | ||||||||||||
| Pan z magnitude | 19.86 (0.03) | ||||||||||||
| Pan y magnitude | 19.72 (0.1) | ||||||||||||
| E(B-V) | 0.021 | ||||||||||||
* Constant surface field
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