HD 221420 b is a gas giant exoplanet that orbits a G-type star. Its mass is 20.0215 Jupiters, it takes 23.6 years to complete one orbit of its star, and is 8.416586 AU from its star. Its discovery was announced in 2019.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2019
MASS
20.0215 Jupiters
PLANET RADIUS
1.08 x Jupiter
(estimate)
ORBITAL RADIUS
8.416586 AU
ORBITAL PERIOD
23.6 years
ECCENTRICITY
0.08
DETECTION METHOD