planet vs planetary

planet is a noun but planetary is not a noun.

Word	Noun	Adjective	Verb	Adverb
planet	Yes	No	No	No
planetary	No	Yes	No	No

planet (noun)	planetary (noun)
(astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; viewed from the constellation Hercules, all the planets rotate around the sun in a counterclockwise direction
any celestial body (other than comets or satellites) that revolves around a star
a person who follows or serves another

planet (adjective)	planetary (adjective)
	of or relating to or resembling the physical or orbital characteristics of a planet or the planets
	of or relating to or characteristic of the planet Earth or its inhabitants
	involving the entire earth; not limited or provincial in scope
	having no fixed course