artist rendition
Artist's concept

Kepler-309 c is a Neptune-like exoplanet that orbits a K-type star. Its mass is Unknown, it takes 105.4 days to complete one orbit of its star, and is 0.401 AU from its star. Its discovery was announced in 2014.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2014
MASS
Unknown
PLANET RADIUS
0.224 x Jupiter
ORBITAL RADIUS
0.401 AU
ORBITAL PERIOD
105.4 days
ECCENTRICITY
Unknown
DETECTION METHOD
Transit