artist rendition
Artist's concept

HD 154857 b is a gas giant exoplanet that orbits a G-type star. Its mass is at least 2.24 Jupiter, it takes 408.6 days to complete one orbit of its star, and is 1.291 AU from its star. Its discovery was announced in 2004.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2004
MASS
at least 2.24 Jupiter
PLANET RADIUS
Unknown
ORBITAL RADIUS
1.291 AU
ORBITAL PERIOD
408.6 days
ECCENTRICITY
0.46
DETECTION METHOD
Radial Velocity