The HD 97658 system contains 1 exoplanet. It is located 70.33 light years away from the solar system.
| Mass | 0.85 solar masses |
| Radius | 0.73 solar radiae |
| Temperature | 5212 kelvin |
| Stellar Metallicity | -0.23 decimal exponent |
| Age | 3.9 billion years |
At more than 10 Earth masses, HD 97658 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 8.300 Earth masses |
| Density | 4.800 grams per cubic centimeter |
| Radius | 2.120 Earth radiae |
| Semi-major Axis | 0.0805 AU |
| Eccentricity | 0.05 |
| Orbital Period | 9.490 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | W. M. Keck Observatory |
| Discovery Telescope | 10 m Keck I Telescope |
| Discovery Instrument | HIRES Spectrometer |
| Discovery Date | 2011-03 |
| Reference | Howard et al. 2011 |