TOI-1231 b
A confirmed exoplanet orbiting TOI-1231.
Compared with Earth
- Size
- About 3.7 times Earth's width.
- Mass
- About 15 times Earth's mass.
- Temperature
- About 56 °C (134 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 1.9 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 24 Earth days.
Planet
- Radius
- 3.65 × Earth
- Mass
- 15.4 × Earth
- Density
- 1.74 g/cm³
- Equilibrium temperature
- 329.6 K
- Starlight received
- 1.93 × Earth
- Orbital period
- 24.25 days
- Average distance from its star
- 0.1288 AU
Star
- Host star
- TOI-1231
- Spectral class
- M — red dwarf
- Surface temperature
- 3,553 K
- Radius
- 0.476 × Sun
- Mass
- 0.485 × Sun
- Age
- Unknown
System
- Distance from Earth
- 90.09 light-years (27.62 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2021
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.