Its size was large enough for it to be classified as a space station.
Although technically dwarfed in length by both the Executor-class Star Dreadnought and the Vengeance-class dreadnought by 1.5 kilometers, the Eclipse-class nonetheless exceeded even the Executor-class in terms of overall mass and volume. The Eclipse-class vessels were among the largest dreadnought-scale ships/Super Star Destroyers ever to be fielded within Galactic history.