Overbeek (1984) D.S. Evans (1988) B. Warner (1992) G. Nicolson (1997) I.S. Glass (1999) L.A.G. Monard (2004) L. Cross (2010) D. O'Donoghue (2011) Activities Various sections exist within the Society to co-ordinate the activities of special interest groups, including the running of observational programs. They consist of the Comets and Meteor Section, Dark Sky, Deep-Sky, Education & Public Communication, Double Stars, Historical, Occultations, Solar and Variable Stars. A national Symposium, organised by one of the Centres, is held every second year. Scopex, a large public outreach event, is held every year under the auspices of the Johannesburg Centre. Autonomous centres The autonomous local centres of ASSA hold regular meetings where visitors are welcomed. Centres are situated in Bloemfontein, Cape Town, Durban, Hermanus, the Garden Route, Midlands, Johannesburg and Pretoria. See also Boyden Observatory SEDS SEDS South Africa South African Astronomical Observatory Southern African Large Telescope List of astronomical societies References External links Bloemfontein Centre Cape Centre Durban Centre Garden Route Centre Hermanus Centre Johannesburg Centre Pretoria Centre Research institutes in South Africa 1922 establishments in South Africa Astronomy organizations Amateur astronomy organizations Scientific organizations established in 1922 Astronomy in South Africa