SDSS J204713.67+002203.8
All names: GALEX J204713.6+002203, WDS J20472+0021B, SDSS J204713.67+002203.8, WD 2044+001, ** CBL 529B, Gaia EDR3 4228388774562523264, SDSS J204713.67+002203.5, Gaia DR2 4228388774562523264, Gaia DR3 4228388774562523264, SDSS J204713.68+002203.8, SDSS J204713.67+002203.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | 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 | 20 47 13.67 (0.1) | 20 47 13.68 | 20 47 13.67 (0.2) | 20 47 13.67 | 20 47 13.67 | 20 47 13.68 (0.1) | 20 47 13.68 | 20 47 13.54 | 20 47 13.68 | ||||||
| Declination | 00 22 02.43 (0.09) | 00 22 03.60 | 00 22 02.48 (0.2) | 00 22 03.79 | 00 22 02.43 | 00 22 03.97 (0.09) | 00 22 03.82 | 00 22 04.08 | 00 22 03.80 | ||||||
| Spectral type | DC+M | DC+M | DC+M | DC | DC | DQ:+M: | DQ: dM | DQ:M: | DC+MS | ||||||
| Effective temperature | [K] | 9293.0 | 9194.0 | 8789.0 (231) | 10407.0 (204) | 10867.0 (241) | |||||||||
| log(g) | [cgs] | 8.06 | 7.99 | 7.88 (0.05) | 8.47 (0.4) | 8.80 (0.2) | |||||||||
| Mass | [M☉] | 0.635 | 0.575 | 0.512 (0.04) | |||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 0.7964 | 0.7685 | ||||||||||||
| log(H/He) | |||||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | |||||||||||||||
| log(Ca/H) | |||||||||||||||
| Parallax | [mas] | 7.36 (0.2) | 7.15 (0.2) | 7.36 | 7.36 (0.2) | ||||||||||
| Distance | [pc] | 135.87 (3) | 139.84 (4) | 776.00 (83) | 135.87 | 135.87 (3) | |||||||||
| Composition | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | -6.354240566 (0.2) | -5.783054505 (0.4) | -6.354 (0.2) | -5.9 | ||||||||||
| Proper motion (declination) | [mas/yr] | -96.16714043 (0.1) | -95.53807102 (0.3) | -96.167 (0.1) | -94.8 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||||
| B magnitude | |||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | |||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | |||||||||||||||
| H magnitude | |||||||||||||||
| K magnitude | |||||||||||||||
| u magnitude | 18.40 (0.02) | 18.43 | 18.40 (0.02) | 18.43 (0.02) | 18.43 | 18.43 (0.02) | |||||||||
| g magnitude | 18.21 (0.007) | 18.25 | 18.21 (0.007) | 18.25 (0.01) | 18.25 | 18.25 (0.01) | |||||||||
| r magnitude | 18.22 (0.008) | 18.28 | 18.22 (0.008) | 18.28 (0.008) | 18.28 | 18.27 (0.01) | |||||||||
| i magnitude | 18.24 (0.009) | 18.32 | 18.24 (0.009) | 18.32 (0.01) | 18.32 | 18.30 (0.01) | |||||||||
| z magnitude | 18.27 (0.03) | 18.35 | 18.27 (0.03) | 18.35 (0.03) | 18.35 | 18.32 (0.03) | |||||||||
| G magnitude | 18.24 (0.02) | 18.27 | 18.24 | 18.24 (0.003) | |||||||||||
| BP magnitude | 18.32 (0.02) | 18.24 | |||||||||||||
| RP magnitude | 18.00 (0.02) | 17.96 | |||||||||||||
| Pan g magnitude | 18.26 (0.005) | ||||||||||||||
| Pan r magnitude | 18.32 (0.003) | ||||||||||||||
| Pan i magnitude | 18.43 (0.007) | ||||||||||||||
| Pan z magnitude | 18.53 (0.01) | ||||||||||||||
| Pan y magnitude | 18.65 (0.05) | ||||||||||||||
| E(B-V) | 0.018 | ||||||||||||||
* Constant surface field
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