HMS Sirius was a 10-gun sloop-of-war of the Royal Navy, originally launched in 1781 under the name Berwick. Built likely in 1780 by Christopher Watson and Co. of Rotherhithe, she was a merchant vessel with a burthen of approximately 512 tons (bm). After suffering a fire, Berwick was purchased by the Royal Navy in November 1781, rebuilt, and subsequently fitted out at Deptford Dockyard. She was coppered and armed with four 6-pounder long guns and six 18-pounder carronades, giving her a modest yet versatile armament suitable for her subsequent roles. Converted from a merchantman, Berwick was commissioned in January 1782 under Lieutenant Bayntun Prideaux and initially served in North America during the American War of Independence before transferring to the West Indies in 1784. She was paid off in 1785, laid up briefly, and then refitted later in 1786 for service with the First Fleet, when she was renamed Sirius on 12 October 1786. Rated as a sixth-rate vessel, she was commanded by Captain Arthur Phillip as the flagship of the First Fleet, which departed from Portsmouth in May 1787. Sirius played a pivotal role in establishing the first European colony in New South Wales, arriving at Botany Bay in January 1788 after a 252-day voyage covering over 15,000 miles. She transported essential supplies and personnel, including the famous marine chronometer used by Captain Cook, and assisted in the colony's initial settlement at Sydney Cove. During her time in Australia, Sirius also carried correspondence from the French explorer Lapérouse, who was later lost at sea. Her service ended tragically on 19 March 1790, when she was wrecked on a reef at Norfolk Island while landing stores. The crew was stranded until rescued in February 1791. Her wreck site and artefacts, including anchors and carronades, are now protected and displayed in various Australian museums, serving as a significant part of Australian maritime history. Sirius's legacy endures through memorials, protected wreck sites, and her role in early Australian colonization efforts.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.