K2-186 b

A confirmed exoplanet orbiting K2-186.

Compared with Earth

Size
About 3.2 times Earth's width.
Year
A year here lasts about 41 Earth days.

Planet

Radius
3.172 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
41.47 days
Average distance from its star
Unknown

Star

Host star
K2-186
Spectral class
G — sun-like
Surface temperature
5,784 K
Radius
0.9808 × Sun
Mass
1.019 × Sun
Age
Unknown

System

Distance from Earth
1,079 light-years (330.7 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2018
Method
Transit
Facility
K2

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