K2-18 c is a Neptune-like exoplanet that orbits a M-type star. Its mass is at least 7.51 Earths, it takes 9 days to complete one orbit of its star, and is 0.06 AU from its star. Its discovery was announced in 2017.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2017
MASS
at least 7.51 Earths
PLANET RADIUS
Unknown
ORBITAL RADIUS
0.06 AU
ORBITAL PERIOD
9 days
ECCENTRICITY
0.47
DETECTION METHOD
Radial Velocity