The HD 213240 system contains 1 exoplanet. It is located 133.30 light years away from the solar system.
| Mass | 1.57 solar masses |
| Radius | 1.51 solar radiae |
| Temperature | 5979 kelvin |
| Stellar Metallicity | 0.15 decimal exponent |
| Age | 4.6 billion years |
At more than 50 Earth masses, HD 213240 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 1773.491 Earth masses |
| Density | 4.650 grams per cubic centimeter |
| Radius | 12.800 Earth radiae |
| Semi-major Axis | 1.89 AU |
| Eccentricity | 0.42 |
| Orbital Period | 882.700 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 1.2 m Leonhard Euler Telescope |
| Discovery Instrument | CORALIE Spectrograph |
| Discovery Date | 2001-12 |
| Reference | Santos et al. 2001 |