Kepler-77 b

A confirmed exoplanet orbiting Kepler-77.

Compared with Earth

Size
About 11 times Earth's width.
Mass
About 137 times Earth's mass.
Temperature
About 1,167 °C (2,132 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 3.6 Earth days.

Planet

Radius
10.76 × Earth
Mass
136.7 × Earth
Density
0.603 g/cm³
Equilibrium temperature
1,440 K
Starlight received
Unknown
Orbital period
3.579 days
Average distance from its star
0.04501 AU

Star

Host star
Kepler-77
Spectral class
G — sun-like
Surface temperature
5,520 K
Radius
0.99 × Sun
Mass
0.95 × Sun
Age
7.5 billion years

System

Distance from Earth
2,085 light-years (639.4 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2013
Method
Transit
Facility
Kepler

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