K2-253 b

A confirmed exoplanet orbiting K2-253.

Compared with Earth

Size
About 13 times Earth's width.
Temperature
About 965 °C (1,769 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 4 Earth days.

Planet

Radius
12.67 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
1,238 K
Starlight received
Unknown
Orbital period
4.002 days
Average distance from its star
0.0506 AU

Star

Host star
K2-253
Spectral class
F — yellow-white
Surface temperature
6,027 K
Radius
1.1 × Sun
Mass
1.08 × Sun
Age
Unknown

System

Distance from Earth
2,859 light-years (876.6 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2018
Method
Transit
Facility
K2

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