HAT-P-31 b is a gas giant exoplanet that orbits a F-type star. Its mass is 2.27 Jupiters and it takes 5 days to complete one orbit of its star. Its discovery was announced in 2011.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2011
MASS
2.27 Jupiters
PLANET RADIUS
1.09 x Jupiter
ORBITAL RADIUS
Unknown
ORBITAL PERIOD
5 days
ECCENTRICITY
0.25
DETECTION METHOD
Transit