The HD 181720 system contains 1 exoplanet. It is located 196.36 light years away from the solar system.
| Mass | 1.03 solar masses |
| Radius | 1.5 solar radiae |
| Temperature | 5736 kelvin |
| Stellar Metallicity | -0.62 decimal exponent |
| Age | - billion years |
At more than 50 Earth masses, HD 181720 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 127.132 Earth masses |
| Density | 0.255 grams per cubic centimeter |
| Radius | 14.000 Earth radiae |
| Semi-major Axis | 1.85 AU |
| Eccentricity | 0.26 |
| Orbital Period | 956.000 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2010-03 |
| Reference | Santos et al. 2010 |