Vigilance (Imperator-class)

The Vigilance was an Imperator-class battleship active after the Battle of Yavin leading a fleet which included Helix Squadron. Under orders from Darth Vader, the fleet participated in the Battle at Fostar Haven, where it destroyed the Alderaanian refugee convoy.
For her efforts in discovering the prior whereabouts of the Millennium Falcon, Darth Vader awarded the ship's command to Senior Captain Rae Sloane instead of Tarus Piett as originally intended.
The Vigilance remained under Sloane's command following her promotion to Admiral. During the months following the Battle of Endor the ship was encountered by Captain Wedge Antilles, a pilot for the New Republic, over Akiva. Antilles was captured by the crew of the Vigilance. He was taken to the planet's surface by Admiral Sloane, where he escaped and sent a distress signal to the New Republic. The New Republic then dispatched a fleet of five ships. In the ensuing battle, the Vigilance and a second battleship, the Ascent, were destroyed; and Admiral Sloane escaped aboard the remaining battleship, the Vanquish.