SDSS J163146.81+294643.0
All names: SDSS J163146.81+294643.0, SDSS J163146.81+294642.9, Gaia DR3 1312027537295195008, SDSS J163146.80+294643.5, GALEX J163146.8+294643, Gaia EDR3 1312027537295195008, SDSS J163146.80+294643.46, Gaia DR2 1312027537295195008, SDSS J163146.80+294643.4
| Parameter | Unit | Gaia EDR3 | SDSS DR10 | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2015 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 16 31 46.80 (0.1) | 16 31 46.81 | 16 31 46.80 (0.2) | 16 31 46.80 | 16 31 46.82 (0.1) | |||||
| Declination | 29 46 43.65 (0.2) | 29 46 43.03 | 29 46 43.63 (0.2) | 29 46 43.65 | 29 46 42.78 (0.2) | |||||
| Spectral type | DBA+M | DBA+M | DB | DBA | DB+MS | |||||
| Effective temperature | [K] | 14921.0 | 15300.0 (117) | 12644.0 (677) | ||||||
| log(g) | [cgs] | 7.89 | 7.90 (0.1) | 7.49 (0.1) | ||||||
| Mass | [M☉] | 0.528 | 0.341 (0.06) | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.1692 | ||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| log(N/He) | ||||||||||
| log(O/He) | ||||||||||
| log(Na/He) | ||||||||||
| log(Mg/He) | ||||||||||
| log(Al/He) | ||||||||||
| log(Si/He) | ||||||||||
| log(P/He) | ||||||||||
| log(S/He) | ||||||||||
| log(Cl/He) | ||||||||||
| log(Sc/He) | ||||||||||
| log(Ti/He) | ||||||||||
| log(V/He) | ||||||||||
| log(Cr/He) | ||||||||||
| log(Mn/He) | ||||||||||
| log(Fe/He) | ||||||||||
| log(Co/He) | ||||||||||
| log(Ni/He) | ||||||||||
| log(Cu/He) | ||||||||||
| log(Zn/He) | ||||||||||
| log(Ga/He) | ||||||||||
| log(Ge/He) | ||||||||||
| log(Sr/He) | ||||||||||
| Parallax | [mas] | 2.74 (0.2) | 2.72 (0.3) | 2.74 | 2.74 (0.2) | |||||
| Distance | [pc] | 364.79 (27) | 367.88 (37) | 364.79 | 364.79 (27) | |||||
| Composition | He | |||||||||
| Proper motion (right ascension) | [mas/yr] | -10.96800177 (0.2) | -10.97214877 (0.5) | -10.968 (0.2) | ||||||
| Proper motion (declination) | [mas/yr] | 54.39073746 (0.2) | 54.35805721 (0.6) | 54.391 (0.2) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | |||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 18.76 (0.02) | 18.76 (0.02) | 18.75 (0.02) | |||||||
| g magnitude | 18.80 (0.009) | 18.83 (0.02) | 18.80 (0.009) | |||||||
| r magnitude | 19.04 (0.01) | 19.07 (0.02) | 19.04 (0.01) | |||||||
| i magnitude | 19.34 (0.02) | 19.36 (0.06) | 19.34 (0.02) | |||||||
| z magnitude | 19.58 (0.07) | 19.62 (0.2) | 19.58 (0.07) | |||||||
| G magnitude | 18.92 (0.03) | 18.99 | 18.92 | 18.92 (0.004) | ||||||
| BP magnitude | 18.87 (0.03) | 18.77 | ||||||||
| RP magnitude | 18.55 (0.05) | 18.67 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.023 | |||||||||
* Constant surface field
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