K2-101 b

A confirmed exoplanet orbiting K2-101.

Compared with Earth

Size
About 2 times Earth's width.
Temperature
About 345 °C (653 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 15 Earth days.

Planet

Radius
2 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
618 K
Starlight received
Unknown
Orbital period
14.68 days
Average distance from its star
0.1124 AU

Star

Host star
K2-101
Spectral class
K — orange dwarf
Surface temperature
4,927 K
Radius
0.76 × Sun
Mass
0.82 × Sun
Age
Unknown

System

Distance from Earth
614.2 light-years (188.3 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2016
Method
Transit
Facility
K2

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