The HD 211970 system contains 1 exoplanet. It is located 42.82 light years away from the solar system.
| Mass | 0.61 solar masses |
| Radius | 0.57 solar radiae |
| Temperature | 4127 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | - billion years |
At more than 10 Earth masses, HD 211970 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 | 13.000 Earth masses |
| Density | 1.460 grams per cubic centimeter |
| Radius | 3.660 Earth radiae |
| Semi-major Axis | 0.143 AU |
| Eccentricity | 0.15 |
| Orbital Period | 25.201 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Las Campanas Observatory |
| Discovery Telescope | 6.5 m Magellan II Clay Telescope |
| Discovery Instrument | Carnegie Planet Finder Spectrograph |
| Discovery Date | 2019-06 |
| Reference | Feng et al. 2019 |