Kepler-30 d

A confirmed exoplanet orbiting Kepler-30.

Compared with Earth

Size
About 8.8 times Earth's width.
Mass
About 23 times Earth's mass.
Year
A year here lasts about 143 Earth days.

Planet

Radius
8.8 × Earth
Mass
23.1 × Earth
Density
0.19 g/cm³
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
143.3 days
Average distance from its star
0.5 AU

Star

Host star
Kepler-30
Spectral class
G — sun-like
Surface temperature
5,498 K
Radius
0.95 × Sun
Mass
0.99 × Sun
Age
2 billion years

System

Distance from Earth
2,982 light-years (914.2 parsecs)
Stars in system
1
Known planets
3

Discovery

Year
2012
Method
Transit
Facility
Kepler

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