The KELT-20 system contains 1 exoplanet. It is located 444.96 light years away from the solar system.
| Mass | 1.76 solar masses |
| Radius | 1.57 solar radiae |
| Temperature | 8720 kelvin |
| Stellar Metallicity | -0.29 decimal exponent |
| Age | 0.6 billion years |
At more than 50 Earth masses, KELT-20 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 1074.901 Earth masses |
| Density | 0.806 grams per cubic centimeter |
| Radius | 19.515 Earth radiae |
| Semi-major Axis | 0.0542 AU |
| Eccentricity | 0 |
| Orbital Period | 3.474 days |
| Discovery Method | Transit |
| Discovery Facility | KELT-North |
| Discovery Telescope | Mamiya 645 80mm f/1.9 |
| Discovery Instrument | Apogee 4K CCD Sensor |
| Discovery Date | 2017-11 |
| Reference | Lund et al. 2017 |