Kepler-99 b

A confirmed exoplanet orbiting Kepler-99.

Compared with Earth

Size
About 1.5 times Earth's width.
Mass
About 6.2 times Earth's mass.
Year
A year here lasts about 4.6 Earth days.

Planet

Radius
1.48 × Earth
Mass
6.15 × Earth
Density
10.9 g/cm³
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
4.604 days
Average distance from its star
Unknown

Star

Host star
Kepler-99
Spectral class
K — orange dwarf
Surface temperature
4,782 K
Radius
0.73 × Sun
Mass
0.79 × Sun
Age
1.47 billion years

System

Distance from Earth
679.6 light-years (208.4 parsecs)
Stars in system
2
Known planets
1

Discovery

Year
2014
Method
Transit
Facility
Kepler

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