K2-22 b

A confirmed exoplanet orbiting K2-22.

Compared with Earth

Size
About 2.3 times Earth's width.
Year
A year here lasts about 9.1 hours.

Planet

Radius
2.3 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
0.3811 days
Average distance from its star
Unknown

Star

Host star
K2-22
Spectral class
M — red dwarf
Surface temperature
3,879 K
Radius
0.58 × Sun
Mass
Unknown
Age
Unknown

System

Distance from Earth
795.3 light-years (243.8 parsecs)
Stars in system
2
Known planets
1

Discovery

Year
2015
Method
Transit
Facility
K2

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