artist rendition
Artist's concept

81 Cet b is a gas giant exoplanet that orbits a K-type star. Its mass is at least 5.3 Jupiter, it takes 2.6 years to complete one orbit of its star, and is 2.5 AU from its star. Its discovery was announced in 2008.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2008
MASS
at least 5.3 Jupiter
PLANET RADIUS
Unknown
ORBITAL RADIUS
2.5 AU
ORBITAL PERIOD
2.6 years
ECCENTRICITY
0.206
DETECTION METHOD
Radial Velocity