The 30 Ari B system contains 1 exoplanet. It is located 145.65 light years away from the solar system.
| Mass | 1.93 solar masses |
| Radius | 1.41 solar radiae |
| Temperature | 6331 kelvin |
| Stellar Metallicity | 0.19 decimal exponent |
| Age | 0.91 billion years |
At more than 50 Earth masses, 30 Ari B b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 4392.411 Earth masses |
| Density | 13.000 grams per cubic centimeter |
| Radius | 12.300 Earth radiae |
| Semi-major Axis | 0.99 AU |
| Eccentricity | 0.29 |
| Orbital Period | 335.100 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Thueringer Landessternwarte Tautenburg |
| Discovery Telescope | 2.0 m Alfred Jensch Telescope |
| Discovery Instrument | Coude Echelle Spectrograph |
| Discovery Date | 2009-12 |
| Reference | Guenther et al. 2009 |