The HD 31253 system contains 1 exoplanet. It is located 189.64 light years away from the solar system.
| Mass | 1.7 solar masses |
| Radius | 1.75 solar radiae |
| Temperature | 6130 kelvin |
| Stellar Metallicity | 0.17 decimal exponent |
| Age | 3 billion years |
At more than 50 Earth masses, HD 31253 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 197.055 Earth masses |
| Density | 0.386 grams per cubic centimeter |
| Radius | 14.100 Earth radiae |
| Semi-major Axis | 1.26 AU |
| Eccentricity | 0.3 |
| Orbital Period | 466.000 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | W. M. Keck Observatory |
| Discovery Telescope | 10 m Keck I Telescope |
| Discovery Instrument | HIRES Spectrometer |
| Discovery Date | 2011-02 |
| Reference | Meschiari et al. 2011 |