artist rendition
Artist's concept

Kepler-138 c is a Super Earth exoplanet that orbits a K-type star. Its mass is 1.97 Earths and it takes 13.8 days to complete one orbit of its star. Its discovery was announced in 2014.

PLANET TYPE
Super-earth
DISCOVERY DATE
2014
MASS
1.97 Earths
PLANET RADIUS
1.197 x Earth
ORBITAL RADIUS
Unknown
ORBITAL PERIOD
13.8 days
ECCENTRICITY
Unknown
DETECTION METHOD
Transit