TOI-791 c

A confirmed exoplanet orbiting TOI-791.

Compared with Earth

Size
About 13 times Earth's width.
Mass
About 19 times Earth's mass.
Temperature
About 90 °C (193 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 4.1 times the starlight Earth gets from the Sun.
Year
A year here lasts about 232 Earth days.

Planet

Radius
12.95 × Earth
Mass
18.6 × Earth
Density
0.047 g/cm³
Equilibrium temperature
362.8 K
Starlight received
4.12 × Earth
Orbital period
232 days
Average distance from its star
0.863 AU

Star

Host star
TOI-791
Spectral class
F — yellow-white
Surface temperature
6,294 K
Radius
1.474 × Sun
Mass
1.28 × Sun
Age
Unknown

System

Distance from Earth
1,113 light-years (341.2 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2026
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

Data from the NASA Exoplanet Archive, synced October 14, 2026.