SDSS J084034.21+363720.6
All names: Gaia EDR3 909871401270609792, GALEX J084034.2+363720, SDSS J084034.22+363720.6, Gaia DR3 909871401270609792, WD 0837+368, SDSS J084034.21+363720.6, SDSS J084034.22+363720.7, Gaia DR2 909871401270609792
| 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 | 08 40 34.19 (0.4) | 08 40 34.21 | 08 40 34.19 (0.6) | 08 40 34.22 (0.4) | 08 40 34.22 | 08 40 34.06 | 08 40 34.22 | ||||||
| Declination | 36 37 20.28 (0.3) | 36 37 20.66 | 36 37 20.29 (0.5) | 36 37 20.70 (0.3) | 36 37 20.69 | 36 37 19.20 | 36 37 20.66 | ||||||
| Spectral type | DC: | DC: | DC | DC: | DC: | DC:M: | DC | ||||||
| Effective temperature | [K] | 8031.0 | 7812.0 | 10139.0 (75) | 10192.0 (117) | ||||||||
| log(g) | [cgs] | 7.96 | 7.87 | 7.97 (0.6) | 8.51 (0.9) | ||||||||
| Mass | [M☉] | 0.57 | 0.504 | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.0020 | 1.0040 | ||||||||||
| log(H/He) | |||||||||||||
| log(C/He) | |||||||||||||
| log(Ca/He) | |||||||||||||
| log(Ca/H) | |||||||||||||
| Parallax | [mas] | 4.37 (0.6) | 4.05 (0.7) | 4.37 (0.6) | |||||||||
| Distance | [pc] | 228.71 (31) | 246.65 (43) | 228.71 (31) | |||||||||
| Composition | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -26.74704657 (0.6) | -28.27476912 (1) | -26.747 (0.6) | -20.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -26.57300871 (0.5) | -25.64870987 (0.9) | -26.573 (0.5) | -22.5 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 20.16 (0.04) | 20.16 (0.04) | 20.14 (0.05) | 20.14 | 20.13 (0.05) | ||||||||
| g magnitude | 19.86 (0.01) | 19.86 (0.01) | 19.87 (0.02) | 19.87 | 19.87 (0.02) | ||||||||
| r magnitude | 19.84 (0.02) | 19.84 (0.02) | 19.83 (0.03) | 19.82 | 19.83 (0.03) | ||||||||
| i magnitude | 19.97 (0.02) | 19.97 (0.02) | 19.96 (0.04) | 19.95 | 19.96 (0.04) | ||||||||
| z magnitude | 20.23 (0.1) | 20.23 (0.1) | 20.22 (0.1) | 20.21 | 20.22 (0.1) | ||||||||
| G magnitude | 19.83 (0.05) | 19.88 | 19.83 (0.005) | ||||||||||
| BP magnitude | 20.04 (0.05) | 19.82 | |||||||||||
| RP magnitude | 19.40 (0.09) | 19.49 | |||||||||||
| Pan g magnitude | 19.90 (0.02) | ||||||||||||
| Pan r magnitude | 19.89 (0.01) | ||||||||||||
| Pan i magnitude | 19.99 (0.008) | ||||||||||||
| Pan z magnitude | 20.08 (0.03) | ||||||||||||
| Pan y magnitude | 19.96 (0.003) | ||||||||||||
| E(B-V) | 0.013 | ||||||||||||
* Constant surface field
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