The HATS-57 system contains 1 exoplanet. It is located 911.56 light years away from the solar system.
| Mass | 1.03 solar masses |
| Radius | 0.96 solar radiae |
| Temperature | 5587 kelvin |
| Stellar Metallicity | 0.268 decimal exponent |
| Age | 2.5 billion years |
At more than 50 Earth masses, HATS-57 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 1000.211 Earth masses |
| Density | 2.650 grams per cubic centimeter |
| Radius | 12.767 Earth radiae |
| Semi-major Axis | 0.03493 AU |
| Eccentricity | 0.028 |
| Orbital Period | 2.351 days |
| Discovery Method | Transit |
| Discovery Facility | HATSouth |
| Discovery Telescope | 0.18 m Takahashi Epsilon Astrograph |
| Discovery Instrument | Apogee 4K CCD Sensor |
| Discovery Date | 2019-08 |
| Reference | Espinoza et al. 2019 |