The TOI-122 system contains 1 exoplanet. It is located 202.60 light years away from the solar system.
| Mass | 0.31 solar masses |
| Radius | 0.33 solar radiae |
| Temperature | 3403 kelvin |
| Stellar Metallicity | - decimal exponent |
| Age | 2 billion years |
At more than 10 Earth masses, TOI-122 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 | 7.850 Earth masses |
| Density | 2.140 grams per cubic centimeter |
| Radius | 2.720 Earth radiae |
| Semi-major Axis | 0.0392 AU |
| Eccentricity | 0 |
| Orbital Period | 5.078 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 | 2021-01 |
| Reference | Waalkes et al. 2021 |