HAT-P-18 b is a gas giant exoplanet that orbits a K-type star. Its mass is 0.197 Jupiters, it takes 5.5 days to complete one orbit of its star, and is 0.0559 AU from its star. Its discovery was announced in 2010.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2010
MASS
0.197 Jupiters
PLANET RADIUS
0.995 x Jupiter
ORBITAL RADIUS
0.0559 AU
ORBITAL PERIOD
5.5 days
ECCENTRICITY
0.08
DETECTION METHOD