Kepler-129 c

A confirmed exoplanet orbiting Kepler-129.

Compared with Earth

Size
About 2.5 times Earth's width.
Mass
About 43 times Earth's mass.
Year
A year here lasts about 82 Earth days.

Planet

Radius
2.52 × Earth
Mass
43 × Earth
Density
14.8 g/cm³
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
82.2 days
Average distance from its star
0.39 AU

Star

Host star
Kepler-129
Spectral class
G — sun-like
Surface temperature
5,770 K
Radius
1.653 × Sun
Mass
1.178 × Sun
Age
6.43 billion years

System

Distance from Earth
1,333 light-years (408.8 parsecs)
Stars in system
1
Known planets
3

Discovery

Year
2014
Method
Transit
Facility
Kepler

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