Kepler-1229 b

A confirmed exoplanet orbiting Kepler-1229.

Compared with Earth

Size
About 1.4 times Earth's width.
Year
A year here lasts about 87 Earth days.

Planet

Radius
1.4 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
86.83 days
Average distance from its star
Unknown

Star

Host star
Kepler-1229
Spectral class
M — red dwarf
Surface temperature
3,784 K
Radius
0.51 × Sun
Mass
0.54 × Sun
Age
3.72 billion years

System

Distance from Earth
865.9 light-years (265.5 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2016
Method
Transit
Facility
Kepler

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