HD 180617 b is a Neptune-like exoplanet that orbits a K-type star. Its mass is 12.2 Earths, it takes 105.9 days to complete one orbit of its star, and is 0.3357 AU from its star. Its discovery was announced in 2018.

PLANET TYPE
Neptune-like
DISCOVERY DATE
2018
MASS
12.2 Earths
PLANET RADIUS
0.315 x Jupiter
(estimate)
ORBITAL RADIUS
0.3357 AU
ORBITAL PERIOD
105.9 days
ECCENTRICITY
0.16
DETECTION METHOD