K2-111 b

A confirmed exoplanet orbiting K2-111.

Compared with Earth

Size
About 1.8 times Earth's width.
Mass
About 5.4 times Earth's mass.
Temperature
About 1,020 °C (1,868 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 5.4 Earth days.

Planet

Radius
1.837 × Earth
Mass
5.35 × Earth
Density
5.065 g/cm³
Equilibrium temperature
1,293 K
Starlight received
Unknown
Orbital period
5.352 days
Average distance from its star
0.0565 AU

Star

Host star
K2-111
Spectral class
G — sun-like
Surface temperature
5,775 K
Radius
1.25 × Sun
Mass
0.84 × Sun
Age
12.3 billion years

System

Distance from Earth
653.6 light-years (200.4 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2017
Method
Transit
Facility
K2

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