National astronomy conferences have been held all over Australia since 1967. The first conference actually titled "NACAA" was held in 1972. The conference name was coined by John Perdrix, and is pronounced with a hard "C" to rhyme with "backer".

Year	City	Hosts
2008	Penrith
2006	Frankston	Mornington Peninsula Astronomical Society
2004	Hobart	Astronomical Society of Tasmania
2002	Adelaide	Astronomical Society of South Australia
2000	Perth	Astronomy WA
1998	Sutherland	Sutherland Astronomical Society
1996	Brisbane	Astronomical Association of Queensland, Southern Astronomical Society, Brisbane Astronomical Society, Southeast Queensland Astronomical Society
1994	Canberra	Canberra Astronomical Society
1992	Adelaide	Astronomical Society of South Australia
1990	Frankston	Astronomical Society of Frankston, Astronomical Society of Victoria
1988	Sydney	Astronomical Society of New South Wales, British Astronomical Association (NSW Branch), Sutherland Astronomical Society
1986	Hobart	Astronomical Society of Tasmania
1984	Perth	Astronomical Society of Western Australia
1982	Brisbane	Astronomical Association of Queensland
1980	Geelong	Astronomical Society of Geelong
1978	Canberra	Canberra Astronomical Society
1976	Sydney	Astronomical Society of New South Wales
1974	Adelaide	Astronomical Society of South Australia
1972	Melbourne	Astronomical Society of Victoria
1970	Wollongong	Illawarra Astronomical Society
1969	Ballarat	Ballaarat Astronomical Society
1968	Port Macquarie	Port Macquarie Astronomical Association
1967	Canberra	James Cook Astronomers Club, Pacific Astronomical Society