artist rendition
Artist's concept

HR 8799 d is a gas giant exoplanet that orbits an unknown-type star. Its mass is 10 Jupiters, it takes 101.4 years to complete one orbit of its star, and is 24 AU from its star. Its discovery was announced in 2008.

PLANET TYPE
Gas Giant
DISCOVERY DATE
2008
MASS
10 Jupiters
PLANET RADIUS
1.2 x Jupiter
ORBITAL RADIUS
24.0 AU
ORBITAL PERIOD
101.4 years
ECCENTRICITY
Unknown
DETECTION METHOD
Imaging