The HD 103720 system contains 1 exoplanet. It is located 148.52 light years away from the solar system.
| Mass | 0.79 solar masses |
| Radius | 0.73 solar radiae |
| Temperature | 5017 kelvin |
| Stellar Metallicity | -0.02 decimal exponent |
| Age | 3.8 billion years |
At more than 50 Earth masses, HD 103720 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 197.046 Earth masses |
| Density | 0.386 grams per cubic centimeter |
| Radius | 14.100 Earth radiae |
| Semi-major Axis | 0.0498 AU |
| Eccentricity | 0.086 |
| Orbital Period | 4.556 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2015-04 |
| Reference | Moutou et al. 2015 |