K2-138 e is a Neptune-like exoplanet that orbits a G-type star. Its mass is 12.97 Earths, it takes 8.3 days to complete one orbit of its star, and is 0.0782 AU from its star. Its discovery was announced in 2017.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2017
MASS
12.97 Earths
PLANET RADIUS
0.302 x Jupiter
ORBITAL RADIUS
0.0782 AU
ORBITAL PERIOD
8.3 days
ECCENTRICITY
0.08
DETECTION METHOD