SDSS J165645.49+182437.7
All names: GALEX J165645.4+182439, SDSS J165645.49+182437.7, Gaia EDR3 4559540786127560960, Gaia DR3 4559540786127560960, SDSS J165645.50+182437.7, WD 1654+184, Gaia DR2 4559540786127560960
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 56 45.50 (0.4) | 16 56 45.50 | 16 56 45.50 (0.5) | 16 56 45.50 (0.4) | 16 56 45.50 | 16 56 45.36 | 16 56 45.50 | ||||
| Declination | 18 24 37.76 (0.3) | 18 24 37.71 | 18 24 37.76 (0.4) | 18 24 37.64 (0.3) | 18 24 37.71 | 18 24 34.20 | 18 24 37.71 | ||||
| Spectral type | DA | DA | DA_auto | DA | DA | ||||||
| Effective temperature | [K] | 9918.0 | 12460.0 (638) | 12578.0 (596) | |||||||
| log(g) | [cgs] | 6.50 | 8.44 (0.3) | 8.32 (0.3) | |||||||
| Mass | [M☉] | 0.128 | 0.795 (0.2) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| log(C/H) | |||||||||||
| log(N/H) | |||||||||||
| log(O/H) | |||||||||||
| log(Na/H) | |||||||||||
| log(Mg/H) | |||||||||||
| log(Al/H) | |||||||||||
| log(Si/H) | |||||||||||
| log(P/H) | |||||||||||
| log(S/H) | |||||||||||
| log(Sc/H) | |||||||||||
| log(Ti/H) | |||||||||||
| log(Cr/H) | |||||||||||
| log(Mn/H) | |||||||||||
| log(Fe/H) | |||||||||||
| log(Ni/H) | |||||||||||
| Parallax | [mas] | 0.87 (0.6) | 1.03 (0.7) | 0.87 (0.6) | |||||||
| Distance | [pc] | 1143.63 (754) | 974.46 (677) | 1143.64 (753) | |||||||
| Composition | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 2.763151382 (0.5) | 1.798609768 (0.9) | 2.763 (0.5) | |||||||
| Proper motion (declination) | [mas/yr] | 7.789239362 (0.4) | 7.991357727 (0.9) | 7.789 (0.4) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.89 (0.07) | 20.89 (0.07) | 20.87 (0.07) | 20.87 | 20.88 (0.07) | ||||||
| g magnitude | 20.28 (0.02) | 20.28 (0.02) | 20.30 (0.02) | 20.30 | 20.31 (0.02) | ||||||
| r magnitude | 20.38 (0.03) | 20.38 (0.03) | 20.39 (0.03) | 20.38 | 20.39 (0.03) | ||||||
| i magnitude | 20.52 (0.04) | 20.52 (0.04) | 20.51 (0.04) | 20.50 | 20.52 (0.04) | ||||||
| z magnitude | 20.56 (0.2) | 20.56 (0.2) | 20.54 (0.2) | 20.53 | 20.55 (0.2) | ||||||
| G magnitude | 20.32 (0.06) | 20.37 | 20.32 (0.005) | ||||||||
| BP magnitude | 20.32 (0.06) | 20.37 | |||||||||
| RP magnitude | 19.90 (0.1) | 20.19 | |||||||||
| Pan g magnitude | 20.35 (0.02) | ||||||||||
| Pan r magnitude | 20.42 (0.02) | ||||||||||
| Pan i magnitude | 20.56 (0.02) | ||||||||||
| Pan z magnitude | 20.50 (0.08) | ||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.059 | ||||||||||
* Constant surface field
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