The HD 42012 system contains 1 exoplanet. It is located 120.02 light years away from the solar system.
| Mass | 0.83 solar masses |
| Radius | 0.82 solar radiae |
| Temperature | 5405 kelvin |
| Stellar Metallicity | -0.09 decimal exponent |
| Age | 4.1 billion years |
At more than 50 Earth masses, HD 42012 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 508.528 Earth masses |
| Density | 1.140 grams per cubic centimeter |
| Radius | 13.500 Earth radiae |
| Semi-major Axis | 1.67 AU |
| Eccentricity | 0.2 |
| Orbital Period | 857.500 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Haute-Provence Observatory |
| Discovery Telescope | 1.93 m Telescope |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2017-05 |
| Reference | Rey et al. 2017 |