HD 199509 b is a gas giant exoplanet that orbits a G-type star. Its mass is 0.136 Jupiters, it takes 99.6 days to complete one orbit of its star, and is 0.426 AU from its star. Its discovery was announced in 2022.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2022
MASS
0.136 Jupiters
PLANET RADIUS
0.663 x Jupiter
(estimate)
ORBITAL RADIUS
0.426 AU
ORBITAL PERIOD
99.6 days
ECCENTRICITY
0.37
DETECTION METHOD