Kepler-45 b

A confirmed exoplanet orbiting Kepler-45.

Compared with Earth

Size
About 11 times Earth's width.
Mass
About 160 times Earth's mass.
Temperature
About 727 °C (1,340 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 2.5 Earth days.

Planet

Radius
10.76 × Earth
Mass
160.5 × Earth
Density
0.8 g/cm³
Equilibrium temperature
1,000 K
Starlight received
Unknown
Orbital period
2.455 days
Average distance from its star
0.03 AU

Star

Host star
Kepler-45
Spectral class
M — red dwarf
Surface temperature
3,820 K
Radius
0.55 × Sun
Mass
0.59 × Sun
Age
0.5 billion years

System

Distance from Earth
1,246 light-years (381.9 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2011
Method
Transit
Facility
Kepler

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