HAT-P-9 b is a gas giant exoplanet that orbits a F-type star. Its mass is 0.749 Jupiters, it takes 3.9 days to complete one orbit of its star, and is 0.05287 AU from its star. Its discovery was announced in 2008.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2008
MASS
0.749 Jupiters
PLANET RADIUS
1.393 x Jupiter
ORBITAL RADIUS
0.05287 AU
ORBITAL PERIOD
3.9 days
ECCENTRICITY
0.08
DETECTION METHOD