The HD 210702 system contains 1 exoplanet. It is located 176.76 light years away from the solar system.
| Mass | 1.61 solar masses |
| Radius | 4.92 solar radiae |
| Temperature | 4951 kelvin |
| Stellar Metallicity | 0.04 decimal exponent |
| Age | 2.1 billion years |
At more than 50 Earth masses, HD 210702 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 574.637 Earth masses |
| Density | 1.310 grams per cubic centimeter |
| Radius | 13.400 Earth radiae |
| Semi-major Axis | 1.148 AU |
| Eccentricity | 0.028 |
| Orbital Period | 354.100 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Lick Observatory |
| Discovery Telescope | 3.0 m C. Donald Shane Telescope |
| Discovery Instrument | Hamilton Echelle Spectrograph |
| Discovery Date | 2007-08 |
| Reference | Johnson et al. 2007 |