An image of Britain's Queen Elizabeth is illuminated on the sail of Sydney Opera House, following the Queen's passing, in Sydney, Australia, September 9, 2022.
The ceremony was opened by a First Nations Elder, Aunty Violent Sheridan, who made a traditional Welcome to Country, and remembered Queen Elizabeth as a mother and grandmother.
Albanese, who returned to Australia a day earlier after attending Queen Elizabeth's funeral in London, noted her memory was being honoured "on a continent home to the world's oldest continuous culture".
In a speech at the memorial ceremony he said Australia had undergone a transformation during Queen Elizabeth's reign.
Queen Elizabeth had taken pride in Australia's progress and "stood with us", he said, and Australia's "affection held strong".