SDSS J082337.15+383816.5
All names: Gaia DR2 908237286473825664, Gaia DR3 908237286473825664, GALEX J082337.2+383817, WD 0820+387, Gaia EDR3 908237286473825664, SDSS J082337.16+383816.5, SDSS J082337.15+383816.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 23 37.15 (0.2) | 08 23 37.16 | 08 23 37.16 (0.3) | 08 23 37.15 | 08 23 37.16 (0.2) | 08 23 37.16 | 08 23 37.34 | 08 23 37.16 | ||||||
| Declination | 38 38 16.71 (0.2) | 38 38 16.57 | 38 38 16.70 (0.2) | 38 38 16.71 | 38 38 16.50 (0.2) | 38 38 16.51 | 38 38 12.12 | 38 38 16.51 | ||||||
| Spectral type | DC | DC | DC | DC | DC: | DC: | DC | DC | ||||||
| Effective temperature | [K] | 7986.0 | 7727.0 | 7012.0 (321) | 10082.0 (8) | 10082.0 (10) | ||||||||
| log(g) | [cgs] | 8.46 | 8.39 | 8.12 (0.08) | 8.24 (0.5) | 9.64 (0.4) | ||||||||
| Mass | [M☉] | 0.891 | 0.825 | 0.647 (0.07) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 2.6290 | 2.5590 | |||||||||||
| log(H/He) | ||||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| log(Ca/H) | ||||||||||||||
| Parallax | [mas] | 7.91 (0.3) | 8.10 (0.4) | 7.91 | 7.91 (0.3) | |||||||||
| Distance | [pc] | 126.50 (4) | 123.48 (6) | 126.50 | 126.50 (4) | |||||||||
| Composition | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.329096291 (0.3) | -3.792606718 (0.6) | -4.329 (0.3) | -5.8 | |||||||||
| Proper motion (declination) | [mas/yr] | 13.23193742 (0.2) | 12.95436625 (0.4) | 13.232 (0.2) | 15.8 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 19.64 (0.03) | 19.64 (0.03) | 19.64 (0.03) | 19.64 | 19.67 (0.03) | |||||||||
| g magnitude | 19.27 (0.01) | 19.27 (0.01) | 19.26 (0.01) | 19.26 | 19.28 (0.01) | |||||||||
| r magnitude | 19.16 (0.01) | 19.16 (0.01) | 19.15 (0.01) | 19.15 | 19.16 (0.01) | |||||||||
| i magnitude | 19.20 (0.01) | 19.20 (0.01) | 19.20 (0.02) | 19.20 | 19.20 (0.02) | |||||||||
| z magnitude | 19.24 (0.05) | 19.24 (0.05) | 19.22 (0.04) | 19.22 | 19.24 (0.04) | |||||||||
| G magnitude | 19.12 (0.02) | 19.16 | 19.12 | 19.12 (0.004) | ||||||||||
| BP magnitude | 19.30 (0.02) | 19.21 | ||||||||||||
| RP magnitude | 18.86 (0.02) | 18.87 | ||||||||||||
| Pan g magnitude | 19.25 (0.008) | |||||||||||||
| Pan r magnitude | 19.15 (0.005) | |||||||||||||
| Pan i magnitude | 19.18 (0.01) | |||||||||||||
| Pan z magnitude | 19.31 (0.01) | |||||||||||||
| Pan y magnitude | 19.06 (0.2) | |||||||||||||
| E(B-V) | 0.006 | |||||||||||||
* Constant surface field
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