Astronomy . a natural body that revolves around a planet; a moon.

a country under the domination or influence of another.

something, as a branch office or an off-campus facility of a university, that depends on, accompanies, or serves something else.

an attendant or follower of another person, often subservient or obsequious in manner.

a device designed to be launched into orbit around the earth, another planet, the sun, etc.

of, pertaining to, or constituting a satellite

the nation's new satellite program.

subordinate to another authority, outside power, or the like

summoned to a conference of satellite nations.

noun

adherent , cohort , disciple , henchman , minion , partisan , supporter , ancillary , asteroid , luna , moon , rocket , spacecraft , sputnik , subsidiary