Kepler-57 b

A confirmed exoplanet orbiting Kepler-57.

Compared with Earth

Size
About 3.1 times Earth's width.
Mass
About 25 times Earth's mass.
Year
A year here lasts about 5.7 Earth days.

Planet

Radius
3.135 × Earth
Mass
25.06 × Earth
Density
4.466 g/cm³
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
5.72 days
Average distance from its star
Unknown

Star

Host star
Kepler-57
Spectral class
K — orange dwarf
Surface temperature
5,188 K
Radius
0.826 × Sun
Mass
0.859 × Sun
Age
Unknown

System

Distance from Earth
2,101 light-years (644.1 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2012
Method
Transit
Facility
Kepler

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