GJ 3998 c is a Neptune-like exoplanet that orbits a K-type star. Its mass is at least 6.26 Earths, it takes 13.7 days to complete one orbit of its star, and is 0.089 AU from its star. Its discovery was announced in 2016.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2016
MASS
at least 6.26 Earths
PLANET RADIUS
Unknown
ORBITAL RADIUS
0.089 AU
ORBITAL PERIOD
13.7 days
ECCENTRICITY
0.049
DETECTION METHOD
Radial Velocity