(1):

(a.) Consisting of planets; as, a planetary system.

(2):

(a.) Of or pertaining to the planets; as, planetary inhabitants; planetary motions; planetary year.

(3):

(a.) Under the dominion or influence of a planet.

(4):

(a.) Caused by planets.

(5):

(a.) Having the nature of a planet; erratic; revolving; wandering.