The HD 6434 system contains 1 exoplanet. It is located 138.15 light years away from the solar system.
| Mass | 1.1 solar masses |
| Radius | 1.12 solar radiae |
| Temperature | 5769 kelvin |
| Stellar Metallicity | -0.55 decimal exponent |
| Age | 11.27 billion years |
At more than 50 Earth masses, HD 6434 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 155.737 Earth masses |
| Density | 0.299 grams per cubic centimeter |
| Radius | 14.200 Earth radiae |
| Semi-major Axis | 0.14 AU |
| Eccentricity | 0.17 |
| Orbital Period | 21.998 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 1.2 m Leonhard Euler Telescope |
| Discovery Instrument | CORALIE Spectrograph |
| Discovery Date | 2004-02 |
| Reference | Mayor et al. 2004 |