TOI-1238 b
A confirmed exoplanet orbiting TOI-1238.
Compared with Earth
- Size
- About 1.2 times Earth's width.
- Mass
- About 3.8 times Earth's mass.
- Temperature
- About 860 °C (1,580 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 442 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 18 hours.
Planet
- Radius
- 1.21 × Earth
- Mass
- 3.76 × Earth
- Density
- 11.7 g/cm³
- Equilibrium temperature
- 1,133 K
- Starlight received
- 442 × Earth
- Orbital period
- 0.7646 days
- Average distance from its star
- 0.0139 AU
Star
- Host star
- TOI-1238
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,089 K
- Radius
- 0.58 × Sun
- Mass
- 0.59 × Sun
- Age
- 0.8 billion years
System
- Distance from Earth
- 230.6 light-years (70.71 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2022
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.