Solar system member? (6)

I believe the answer is:
planet
(Other definitions for planet that I've seen before include "Mercury?" , "Large celestial body" , "Orbiting heavenly body" , "Venus, for example" , "body in orbit" .)
I believe the answer is:
planet
(Other definitions for planet that I've seen before include "Mercury?" , "Large celestial body" , "Orbiting heavenly body" , "Venus, for example" , "body in orbit" .)