Kepler-258 b

A confirmed exoplanet orbiting Kepler-258.

Compared with Earth

Size
About 4.1 times Earth's width.
Year
A year here lasts about 13 Earth days.

Planet

Radius
4.06 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
13.2 days
Average distance from its star
0.103 AU

Star

Host star
Kepler-258
Spectral class
K — orange dwarf
Surface temperature
4,942 K
Radius
0.915 × Sun
Mass
Unknown
Age
Unknown

System

Distance from Earth
1,879 light-years (576 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2014
Method
Transit
Facility
Kepler

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