K2-39 b

A confirmed exoplanet orbiting K2-39.

Compared with Earth

Size
About 6.3 times Earth's width.
Mass
About 29 times Earth's mass.
Year
A year here lasts about 4.6 Earth days.

Planet

Radius
6.277 × Earth
Mass
28.6 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
4.605 days
Average distance from its star
Unknown

Star

Host star
K2-39
Spectral class
K — orange dwarf
Surface temperature
4,881 K
Radius
2.97 × Sun
Mass
0.66 × Sun
Age
Unknown

System

Distance from Earth
1,003 light-years (307.5 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2016
Method
Transit
Facility
K2

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