The HD 40979 system contains 1 exoplanet. It is located 111.18 light years away from the solar system.
| Mass | 1.45 solar masses |
| Radius | 1.21 solar radiae |
| Temperature | 6165 kelvin |
| Stellar Metallicity | 0.2 decimal exponent |
| Age | 3.56 billion years |
At more than 50 Earth masses, HD 40979 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 1484.266 Earth masses |
| Density | 3.800 grams per cubic centimeter |
| Radius | 12.900 Earth radiae |
| Semi-major Axis | 0.85 AU |
| Eccentricity | 0.25 |
| Orbital Period | 264.150 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2003-04 |
| Reference | Fischer et al. 2003 |