Kepler-222 d

A confirmed exoplanet orbiting Kepler-222.

Compared with Earth

Size
About 3.7 times Earth's width.
Year
A year here lasts about 28 Earth days.

Planet

Radius
3.69 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
28.08 days
Average distance from its star
0.18 AU

Star

Host star
Kepler-222
Spectral class
G — sun-like
Surface temperature
5,433 K
Radius
0.869 × Sun
Mass
Unknown
Age
Unknown

System

Distance from Earth
2,475 light-years (758.9 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.