SDSS J081658.40+312912.2
All names: Gaia DR3 900947936698190080, Gaia DR2 900947936698190080, Gaia EDR3 900947936698190080, GALEX J081658.3+312913, SDSS J081658.40+312912.2, SDSS J081658.40+312912.26
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 16 58.41 (1) | 08 16 58.40 | 08 16 58.41 (1) | 08 16 58.40 (1) | |||||
| Declination | 31 29 11.85 (0.8) | 31 29 12.32 | 31 29 11.86 (0.7) | 31 29 12.35 (0.8) | |||||
| Spectral type | DA | DA | DA | ||||||
| Effective temperature | [K] | 7170.0 | 8150.0 (77) | ||||||
| log(g) | [cgs] | 6.85 | 7.80 (0.1) | ||||||
| Mass | [M☉] | 0.165 | 0.507 (0.06) | ||||||
| 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] | 2.88 (1) | 2.01 (1) | 2.88 (1) | |||||
| Distance | [pc] | 347.55 (154) | 497.95 (321) | 347.55 (154) | |||||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 14.59970482 (2) | 11.36610224 (2) | 14.6 (2) | |||||
| Proper motion (declination) | [mas/yr] | -31.48041509 (0.9) | -31.82603054 (1) | -31.48 (0.9) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 21.10 (0.09) | 21.11 (0.08) | 21.11 (0.08) | ||||||
| g magnitude | 20.62 (0.02) | 20.64 (0.03) | 20.64 (0.03) | ||||||
| r magnitude | 20.53 (0.03) | 20.55 (0.03) | 20.55 (0.03) | ||||||
| i magnitude | 20.43 (0.03) | 20.45 (0.03) | 20.45 (0.03) | ||||||
| z magnitude | 20.40 (0.1) | 20.44 (0.1) | 20.44 (0.1) | ||||||
| G magnitude | 20.57 (0.1) | 20.62 | 20.57 (0.01) | ||||||
| BP magnitude | 20.91 (0.1) | 20.65 | |||||||
| RP magnitude | 20.15 (0.1) | 20.14 | |||||||
| Pan g magnitude | 20.61 (0.02) | ||||||||
| Pan r magnitude | 20.57 (0.02) | ||||||||
| Pan i magnitude | 20.54 (0.02) | ||||||||
| Pan z magnitude | 20.55 (0.05) | ||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.023 | ||||||||
* Constant surface field
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