BD+20 2457 b is a gas giant exoplanet that orbits a K-type star. Its mass is 55.59 Jupiters, it takes 379.6 days to complete one orbit of its star, and is 1.05 AU from its star. Its discovery was announced in 2009.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2009
MASS
55.59 Jupiters
PLANET RADIUS
1.03 x Jupiter
(estimate)
ORBITAL RADIUS
1.05 AU
ORBITAL PERIOD
379.6 days
ECCENTRICITY
0.15
DETECTION METHOD