Dyson (Imperial Registry: NXT 1806-004) is a Constitution-class (Type II) (Dreadnought Sub-Class) Warship that served as a Central Defense Heavy Combat Cruiser for the Imperial Federation of United Worlds From 2160 to 2262. Next to Warships Enterprise and Constellation, the Dyson is one of the most legendary ships in Imperial Starfleet history under the memorable command of Marlena Luna Moreau.