HMS Sirius explained

Seven ships of the Royal Navy have been named HMS Sirius after the brightest star in the night sky.

• was the flagship of the First Fleet to Australia.
• was a 36-gun fifth-rate frigate, and served during the Napoleonic Wars until she was lost at the Battle of Grand Port, Isle de France.
• was a fifth-rate frigate. She was never commissioned and apparently spent her whole career at Portsmouth in ordinary until she was broken up there in 1862.
• was an wooden screw sloop sold in 1885.
• was an protected cruiser that served in World War I.
• was a light cruiser in World War II.
• was a in service until 1994.
• SS Sirius (1837)

Related

• - Royal Australian Navy replenishment vessel, named in honour of First Fleet ship HMS Sirius (1786).