The KELT-8 system contains 1 exoplanet. It is located 644.39 light years away from the solar system.
| Mass | 0.81 solar masses |
| Radius | 1.46 solar radiae |
| Temperature | 5754 kelvin |
| Stellar Metallicity | 0.27 decimal exponent |
| Age | 5.4 billion years |
At more than 50 Earth masses, KELT-8 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 209.768 Earth masses |
| Density | 0.167 grams per cubic centimeter |
| Radius | 18.159 Earth radiae |
| Semi-major Axis | 0.0455 AU |
| Eccentricity | 0.04 |
| Orbital Period | 3.244 days |
| Discovery Method | Transit |
| Discovery Facility | KELT |
| Discovery Telescope | Mamiya 645 80mm f/1.9 |
| Discovery Instrument | Apogee 4K CCD Sensor |
| Discovery Date | 2015-09 |
| Reference | Fulton et al. 2015 |