The HD 171028 system contains 1 exoplanet. It is located 364.18 light years away from the solar system.
| Mass | 1.53 solar masses |
| Radius | 2.47 solar radiae |
| Temperature | 5671 kelvin |
| Stellar Metallicity | -0.48 decimal exponent |
| Age | 8.59 billion years |
At more than 50 Earth masses, HD 171028 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 832.715 Earth masses |
| Density | 1.990 grams per cubic centimeter |
| Radius | 13.200 Earth radiae |
| Semi-major Axis | 1.32 AU |
| Eccentricity | 0.59 |
| Orbital Period | 550.000 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | La Silla Observatory |
| Discovery Telescope | 3.6 m ESO Telescope |
| Discovery Instrument | HARPS Spectrograph |
| Discovery Date | 2007-11 |
| Reference | Santos et al. 2007 |