Kepler-645 b

A confirmed exoplanet orbiting Kepler-645.

Compared with Earth

Size
About 2.1 times Earth's width.
Year
A year here lasts about 3.3 Earth days.

Planet

Radius
2.1 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
3.276 days
Average distance from its star
Unknown

Star

Host star
Kepler-645
Spectral class
F — yellow-white
Surface temperature
6,170 K
Radius
1.21 × Sun
Mass
1.13 × Sun
Age
2.95 billion years

System

Distance from Earth
3,828 light-years (1,174 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2016
Method
Transit
Facility
Kepler

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