HD 221420 b is a gas giant exoplanet that orbits a G-type star. Its mass is 9.7 Jupiters, it takes 61.6 years to complete one orbit of its star, and is 18.5 AU from its star. Its discovery was announced in 2019.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2019
MASS
9.7 Jupiters
PLANET RADIUS
1.11 x Jupiter
(estimate)
ORBITAL RADIUS
18.5 AU
ORBITAL PERIOD
61.6 years
ECCENTRICITY
0.42
DETECTION METHOD