The HD 220689 system contains 1 exoplanet. It is located 152.89 light years away from the solar system.
| Mass | 1.02 solar masses |
| Radius | 1.07 solar radiae |
| Temperature | 5921 kelvin |
| Stellar Metallicity | -0.07 decimal exponent |
| Age | 4.586 billion years |
At more than 50 Earth masses, HD 220689 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 355.334 Earth masses |
| Density | 0.759 grams per cubic centimeter |
| Radius | 13.700 Earth radiae |
| Semi-major Axis | 3.396 AU |
| Eccentricity | 0.054 |
| Orbital Period | 2266.400 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 1.2 m Leonhard Euler Telescope |
| Discovery Instrument | CORALIE Spectrograph |
| Discovery Date | 2013-03 |
| Reference | Marmier et al. 2013 |