The HD 137388 system contains 1 exoplanet. It is located 132.04 light years away from the solar system.
| Mass | 0.68 solar masses |
| Radius | 0.88 solar radiae |
| Temperature | 5181 kelvin |
| Stellar Metallicity | 0.19 decimal exponent |
| Age | 6.45 billion years |
At more than 50 Earth masses, HD 137388 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 63.566 Earth masses |
| Density | 0.431 grams per cubic centimeter |
| Radius | 9.320 Earth radiae |
| Semi-major Axis | 0.89 AU |
| Eccentricity | 0.36 |
| Orbital Period | 330.000 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2011-11 |
| Reference | Dumusque et al. 2011 |