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Phaeton 5 is a ship in the Fleet.
Phaeton was formerly a shipping barge of the Caprican Impex Corporation prior to the Fall of the Twelve Colonies. It has two hundred and fifty four survivors.
A stowaway, a Returner by the name of Marco Lesa, and his daughter, Jenny, hide on this ship until he is severely injured by a murder attempt by the Earth Protectorate.
Commander Adama and Dr. Sherman Cottle argue his fate (Battlestar Galactica 6).