The Oxford Thesaurus An A-Z Dictionary of Synonyms - satellite n.

1) moon, spacecraft, Old-fashioned sputnik: The sky is crowded with artificial satellites orbiting the earth. 2) follower, attendant, retainer, disciple, acolyte, aide, aide-de-camp, minion, lieutenant, assistant, helper, hanger-on, dependant, shadow, right-hand man, vassal, parasite, sycophant, Colloq sidekick: Boswell became the obsequious satellite of Samuel Johnson.