The NGTS-18 system contains 1 exoplanet. It is located 3575.29 light years away from the solar system.
| Mass | 1 solar masses |
| Radius | 1.39 solar radiae |
| Temperature | 5610 kelvin |
| Stellar Metallicity | 0.15 decimal exponent |
| Age | 10.84 billion years |
At more than 50 Earth masses, NGTS-18 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 129.992 Earth masses |
| Density | 0.280 grams per cubic centimeter |
| Radius | 13.563 Earth radiae |
| Semi-major Axis | 0.0448 AU |
| Eccentricity | 0 |
| Orbital Period | 3.051 days |
| Discovery Method | Transit |
| Discovery Facility | Paranal Observatory |
| Discovery Telescope | 20 cm Telescope |
| Discovery Instrument | Andor Ikon-L Camera |
| Discovery Date | 2021-03 |
| Reference | Tilbrook et al. 2021 |