The HD 3651 system contains 1 exoplanet. It is located 36.31 light years away from the solar system.
| Mass | 0.8 solar masses |
| Radius | 0.87 solar radiae |
| Temperature | 5221 kelvin |
| Stellar Metallicity | 0.145 decimal exponent |
| Age | 3 billion years |
At more than 50 Earth masses, HD 3651 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 72.465 Earth masses |
| Density | 0.386 grams per cubic centimeter |
| Radius | 10.100 Earth radiae |
| Semi-major Axis | 0.295 AU |
| Eccentricity | 0.645 |
| Orbital Period | 62.250 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2003-06 |
| Reference | Fischer et al. 2003 |