The HATS-18 system contains 1 exoplanet. It is located 2036.41 light years away from the solar system.
| Mass | 1.04 solar masses |
| Radius | 1.02 solar radiae |
| Temperature | 5600 kelvin |
| Stellar Metallicity | 0.28 decimal exponent |
| Age | 4.2 billion years |
At more than 50 Earth masses, HATS-18 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 629.144 Earth masses |
| Density | 1.117 grams per cubic centimeter |
| Radius | 14.897 Earth radiae |
| Semi-major Axis | 0.0174 AU |
| Eccentricity | 0.166 |
| Orbital Period | 0.838 days |
| Discovery Method | Transit |
| Discovery Facility | Multiple Observatories |
| Discovery Telescope | Multiple Telescopes |
| Discovery Instrument | Multiple Instruments |
| Discovery Date | 2016-11 |
| Reference | Penev et al. 2016 |