artist rendition
Artist's concept

K2-39 b is a Neptune-like exoplanet that orbits a K-type star. Its mass is 28.6047 Earths and it takes 4.6 days to complete one orbit of its star. Its discovery was announced in 2016.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2016
MASS
28.6047 Earths
PLANET RADIUS
0.56 x Jupiter
ORBITAL RADIUS
Unknown
ORBITAL PERIOD
4.6 days
ECCENTRICITY
0.0
DETECTION METHOD
Transit