The TOI-1259 A system contains 1 exoplanet. It is located 385.21 light years away from the solar system.
| Mass | 0.74 solar masses |
| Radius | 0.71 solar radiae |
| Temperature | 4775 kelvin |
| Stellar Metallicity | -0.5 decimal exponent |
| Age | 4.8 billion years |
At more than 50 Earth masses, TOI-1259 A b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 140.162 Earth masses |
| Density | 0.513 grams per cubic centimeter |
| Radius | 11.456 Earth radiae |
| Semi-major Axis | 0.0407 AU |
| Eccentricity | 0 |
| Orbital Period | 3.478 days |
| Discovery Method | Transit |
| Discovery Facility | Transiting Exoplanet Survey Satellite (TESS) |
| Discovery Telescope | 0.1 m TESS Telescope |
| Discovery Instrument | TESS CCD Array |
| Discovery Date | 2021-11 |
| Reference | Martin et al. 2021 |