The HD 217958 system contains 1 exoplanet. It is located 201.55 light years away from the solar system.
| Mass | 1.08 solar masses |
| Radius | 1.33 solar radiae |
| Temperature | 5930.64 kelvin |
| Stellar Metallicity | 0.287 decimal exponent |
| Age | - billion years |
At more than 50 Earth masses, HD 217958 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 188.027 Earth masses |
| Density | 0.369 grams per cubic centimeter |
| Radius | 14.100 Earth radiae |
| Semi-major Axis | 3.748429 AU |
| Eccentricity | 0.156249 |
| Orbital Period | 2560.198 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2022-09 |
| Reference | Feng et al. 2022 |