K2-24 b

A confirmed exoplanet orbiting K2-24.

Compared with Earth

Size
About 5.6 times Earth's width.
Mass
About 21 times Earth's mass.
Temperature
About 459 °C (858 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 21 Earth days.

Planet

Radius
5.638 × Earth
Mass
20.6 × Earth
Density
0.632 g/cm³
Equilibrium temperature
732 K
Starlight received
Unknown
Orbital period
20.89 days
Average distance from its star
0.1673 AU

Star

Host star
K2-24
Spectral class
G — sun-like
Surface temperature
5,726 K
Radius
1.185 × Sun
Mass
1.091 × Sun
Age
4.9 billion years

System

Distance from Earth
556.3 light-years (170.6 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2016
Method
Transit
Facility
K2

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