The HD 212301 system contains 1 exoplanet. It is located 176.88 light years away from the solar system.
| Mass | 1.55 solar masses |
| Radius | 1.16 solar radiae |
| Temperature | 6239 kelvin |
| Stellar Metallicity | 0.18 decimal exponent |
| Age | 1 billion years |
At more than 50 Earth masses, HD 212301 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 162.093 Earth masses |
| Density | 0.311 grams per cubic centimeter |
| Radius | 14.200 Earth radiae |
| Semi-major Axis | 0.03 AU |
| Eccentricity | 0 |
| Orbital Period | 2.246 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2006-05 |
| Reference | Lo Curto et al. 2006 |