Kepler-1666 b

A confirmed exoplanet orbiting Kepler-1666.

Compared with Earth

Size
About 2.9 times Earth's width.
Year
A year here lasts about 26 Earth days.

Planet

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

Star

Host star
Kepler-1666
Spectral class
F — yellow-white
Surface temperature
6,293 K
Radius
1.146 × Sun
Mass
1.23 × Sun
Age
Unknown

System

Distance from Earth
4,499 light-years (1,379 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2020
Method
Transit
Facility
Kepler

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