SDSS J163958.92+331622.0
All names: SDSS J163958.92+331622.0, Gaia DR2 1326381489797247616, SDSS J163958.93+331622.0, SDSS J163958.93+331622.1, WD 1638+333.1, Gaia EDR3 1326381489797247616, Gaia DR3 1326381489797247616, GALEX J163958.9+331621
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | 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 | 16 39 58.95 (0.1) | 16 39 58.92 | 16 39 58.95 (0.2) | 16 39 58.95 | 16 39 58.92 (0.1) | 16 39 58.93 | 16 39 58.56 | 16 39 58.93 | |||||
| Declination | 33 16 21.46 (0.1) | 33 16 22.06 | 33 16 21.49 (0.2) | 33 16 21.46 | 33 16 22.20 (0.1) | 33 16 22.06 | 33 16 19.56 | 33 16 22.06 | |||||
| Spectral type | DA | DA | DA | DA_auto | DA | DA | DA | ||||||
| Effective temperature | [K] | 8084.0 | 8292.0 (227) | 8618.0 (78) | 8331.0 (91) | ||||||||
| log(g) | [cgs] | 7.07 | 7.18 (0.07) | 8.43 (0.1) | 8.14 (0.2) | ||||||||
| Mass | [M☉] | 0.22 | 0.249 (0.03) | 0.677 (0.1) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.4409 | |||||||||||
| 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] | 3.54 (0.2) | 3.37 (0.2) | 3.54 | 3.54 (0.2) | ||||||||
| Distance | [pc] | 282.45 (13) | 296.83 (19) | 282.45 | 282.45 (13) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 25.26062433 (0.2) | 25.62308278 (0.4) | 25.261 (0.2) | 23.7 | ||||||||
| Proper motion (declination) | [mas/yr] | -46.02546292 (0.2) | -45.82519504 (0.4) | -46.025 (0.2) | -48.6 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | |||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | |||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | 19.62 (0.03) | 19.61 (0.03) | 19.59 (0.03) | 19.58 (0.03) | |||||||||
| g magnitude | 19.12 (0.01) | 19.12 (0.01) | 19.11 (0.02) | 19.11 (0.02) | |||||||||
| r magnitude | 19.07 (0.01) | 19.07 (0.01) | 19.06 (0.02) | 19.07 (0.02) | |||||||||
| i magnitude | 19.07 (0.01) | 19.07 (0.01) | 19.06 (0.02) | 19.08 (0.02) | |||||||||
| z magnitude | 19.26 (0.05) | 19.26 (0.05) | 19.21 (0.05) | 19.23 (0.05) | |||||||||
| G magnitude | 19.02 (0.02) | 19.05 | 19.02 | 19.02 (0.003) | |||||||||
| BP magnitude | 19.15 (0.02) | 19.17 | |||||||||||
| RP magnitude | 18.78 (0.02) | 18.78 | |||||||||||
| Pan g magnitude | 19.10 (0.006) | ||||||||||||
| Pan r magnitude | 19.07 (0.006) | ||||||||||||
| Pan i magnitude | 19.12 (0.005) | ||||||||||||
| Pan z magnitude | 19.21 (0.02) | ||||||||||||
| Pan y magnitude | 19.23 (0.04) | ||||||||||||
| E(B-V) | 0.019 | ||||||||||||
* Constant surface field
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