Kepler-28 c

A confirmed exoplanet orbiting Kepler-28.

Compared with Earth

Size
About 1.9 times Earth's width.
Mass
About 2.1 times Earth's mass.
Year
A year here lasts about 9 Earth days.

Planet

Radius
1.857 × Earth
Mass
2.06 × Earth
Density
1.764 g/cm³
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
8.99 days
Average distance from its star
Unknown

Star

Host star
Kepler-28
Spectral class
K — orange dwarf
Surface temperature
4,499 K
Radius
0.664 × Sun
Mass
0.684 × Sun
Age
Unknown

System

Distance from Earth
1,430 light-years (438.4 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2011
Method
Transit
Facility
Kepler

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