The HD 40956 system contains 1 exoplanet. It is located 380.28 light years away from the solar system.
| Mass | 2 solar masses |
| Radius | 8.56 solar radiae |
| Temperature | 4869 kelvin |
| Stellar Metallicity | 0.14 decimal exponent |
| Age | 1.35 billion years |
At more than 50 Earth masses, HD 40956 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 858.141 Earth masses |
| Density | 2.050 grams per cubic centimeter |
| Radius | 13.200 Earth radiae |
| Semi-major Axis | 1.4 AU |
| Eccentricity | 0.24 |
| Orbital Period | 578.600 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2018-02 |
| Reference | Jeong et al. 2018 |