The GJ 9689 system contains 1 exoplanet. It is located 99.87 light years away from the solar system.
| Mass | 0.59 solar masses |
| Radius | 0.57 solar radiae |
| Temperature | 3836 kelvin |
| Stellar Metallicity | 0.05 decimal exponent |
| Age | 8.9 billion years |
At more than 10 Earth masses, GJ 9689 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 | 9.650 Earth masses |
| Density | 1.830 grams per cubic centimeter |
| Radius | 3.070 Earth radiae |
| Semi-major Axis | 0.1139 AU |
| Eccentricity | 0.29 |
| Orbital Period | 18.270 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Roque de los Muchachos Observatory |
| Discovery Telescope | 3.58 m Telescopio Nazionale Galileo |
| Discovery Instrument | HARPS-N Spectrograph |
| Discovery Date | 2021-07 |
| Reference | Maldonado et al. 2021 |