artist rendition
Artist's concept

BD+20 2457 b is a gas giant exoplanet that orbits a K-type star. Its mass is at least 21.42 Jupiter, it takes 379.6 days to complete one orbit of its star, and is 1.45 AU from its star. Its discovery was announced in 2009.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2009
MASS
at least 21.42 Jupiter
PLANET RADIUS
Unknown
ORBITAL RADIUS
1.45 AU
ORBITAL PERIOD
379.6 days
ECCENTRICITY
0.15
DETECTION METHOD
Radial Velocity