GJ 229 b is a Neptune-like exoplanet that orbits a K-type star. Its mass is 8.478 Earths, it takes 1.4 years to complete one orbit of its star, and is 0.898 AU from its star. Its discovery was announced in 2014.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2014
MASS
8.478 Earths
PLANET RADIUS
0.254 x Jupiter
(estimate)
ORBITAL RADIUS
0.898 AU
ORBITAL PERIOD
1.4 years
ECCENTRICITY
0.1
DETECTION METHOD