Kepler-311 d

A confirmed exoplanet orbiting Kepler-311.

Compared with Earth

Size
About 2.1 times Earth's width.
Temperature
About 54 °C (129 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 2.7 times the starlight Earth gets from the Sun.
Year
A year here lasts about 232 Earth days.

Planet

Radius
2.05 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
327 K
Starlight received
2.71 × Earth
Orbital period
232 days
Average distance from its star
0.7326 AU

Star

Host star
Kepler-311
Spectral class
G — sun-like
Surface temperature
5,903 K
Radius
1.156 × Sun
Mass
0.974 × Sun
Age
Unknown

System

Distance from Earth
2,540 light-years (778.7 parsecs)
Stars in system
1
Known planets
3

Discovery

Year
2023
Method
Transit
Facility
Kepler

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