Death Star
The first Death Star is depicted in various sources of having a crew of 265,675, as well as 52,276 gunners, 607,360 troops, 30,984 stormtroopers, 42,782 ship support staff, and 180,216 pilots and support crew. Its hangars contain assault shuttles, blastboats, Strike cruisers, land vehicles, support ships, and 7,293 TIE fighters. It is also protected by 10,000 turbolaser batteries, 2,600 ion cannons, and at least 768 tractor beam projectors. Various sources state the first Death Star has a diameter of between 140 and 160 kilometers. There is a broader range of figures for the second Death Star's diameter, ranging from 160 to 900 kilometers.
Galactic Empire (Star Wars)
The Death Star, a moon-sized battle station with sufficient firepower to destroy an entire planet, is designed to be the supreme weapon of the Empire's power. Grand Moff Willhuff Tarkin, the station's commander, shortly after informing the heads of the Imperial Military that Palpatine has dissolved the Senate, demonstrates that power in "A New Hope", when he destroys Alderaan merely as a show of force. In the film's climactic scene, however, the station is assaulted by a small force of Rebel starfighters who have come into possession of the station's blueprints. The battle ends with the Death Star's destruction at the hands of Luke Skywalker, which is the Rebel Alliance's first major success against the Empire.