Kepler-390 b

A confirmed exoplanet orbiting Kepler-390.

Compared with Earth

Size
About 82% of Earth's width.
Year
A year here lasts about 6.7 Earth days.

Planet

Radius
0.82 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
6.738 days
Average distance from its star
0.065 AU

Star

Host star
Kepler-390
Spectral class
K — orange dwarf
Surface temperature
5,166 K
Radius
0.776 × Sun
Mass
Unknown
Age
Unknown

System

Distance from Earth
1,420 light-years (435.3 parsecs)
Stars in system
2
Known planets
2

Discovery

Year
2014
Method
Transit
Facility
Kepler

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