K2-397 b

A confirmed exoplanet orbiting K2-397.

Compared with Earth

Size
About 2.4 times Earth's width.
Year
A year here lasts about 3.6 Earth days.

Planet

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

Star

Host star
K2-397
Spectral class
G — sun-like
Surface temperature
5,387 K
Radius
0.966 × Sun
Mass
0.937 × Sun
Age
Unknown

System

Distance from Earth
650.2 light-years (199.4 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2022
Method
Transit
Facility
K2

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