The TOI-1266 system contains 2 exoplanets. It is located 117.45 light years away from the solar system.
| Mass | 0.45 solar masses |
| Radius | 0.42 solar radiae |
| Temperature | 3600 kelvin |
| Stellar Metallicity | -0.5 decimal exponent |
| Age | 7.9 billion years |
At more than 10 Earth masses, TOI-1266 b is an ice giant, a planet that is made up mostly of volatiles like water, amonia and methane, and enveloped by a dense hydrogen and helium atmosphere, much like Uranus and Neptune.
| Mass | 13.500 Earth masses |
| Density | 5.570 grams per cubic centimeter |
| Radius | 2.370 Earth radiae |
| Semi-major Axis | 0.0736 AU |
| Eccentricity | 0.09 |
| Orbital Period | 10.895 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 | 2020-10 |
| Reference | Demory et al. 2020 |
With a mass below 5 Earth masses, a density of 3.18, and a semi-major axis of 0.1058 astronomical units, TOI-1266 c could, potentially, be an ocean world - a planet with no dry land.
| Mass | 2.200 Earth masses |
| Density | 3.180 grams per cubic centimeter |
| Radius | 1.560 Earth radiae |
| Semi-major Axis | 0.1058 AU |
| Eccentricity | 0.04 |
| Orbital Period | 18.802 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 | 2020-10 |
| Reference | Demory et al. 2020 |