Kepler-431 c

A confirmed exoplanet orbiting Kepler-431.

Compared with Earth

Size
About 67% of Earth's width.
Temperature
About 678 °C (1,252 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 8.7 Earth days.

Planet

Radius
0.668 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
951 K
Starlight received
Unknown
Orbital period
8.703 days
Average distance from its star
0.0847 AU

Star

Host star
Kepler-431
Spectral class
F — yellow-white
Surface temperature
6,004 K
Radius
1.092 × Sun
Mass
1.071 × Sun
Age
Unknown

System

Distance from Earth
1,587 light-years (486.5 parsecs)
Stars in system
1
Known planets
3

Discovery

Year
2015
Method
Transit
Facility
Kepler

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