Kepler-101 b

A confirmed exoplanet orbiting Kepler-101.

Compared with Earth

Size
About 5.8 times Earth's width.
Mass
About 51 times Earth's mass.
Temperature
About 1,240 °C (2,264 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 3.5 Earth days.

Planet

Radius
5.77 × Earth
Mass
51.1 × Earth
Density
1.45 g/cm³
Equilibrium temperature
1,513 K
Starlight received
Unknown
Orbital period
3.488 days
Average distance from its star
0.0474 AU

Star

Host star
Kepler-101
Spectral class
G — sun-like
Surface temperature
5,667 K
Radius
1.56 × Sun
Mass
1.17 × Sun
Age
5.9 billion years

System

Distance from Earth
3,027 light-years (928 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2014
Method
Transit
Facility
Kepler

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