Astronomical Society of Southern Africa

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The Astronomical Society of Southern Africa (ASSA), formed in 1922, is a widespread body consisting of both amateur and professional astronomers. The Council of ASSA meets by Skype. There are eight autonomous centres throughout Southern Africa.


The Cape Astronomical Association was established in 1912, shortly after the 1910 appearance of Halley's Comet. Sydney Samuel Hough, HM Astronomer at the Cape, was chosen President. In 1918, the Johannesburg Astronomical Association was created, with RTA Innes, Union Astronomer, as President. In 1922 it was decided to merge the two Associations to form the Astronomical Society of South Africa after an invitation from the Cape Association.

Membership and Publications[edit]

Membership is open to all interested persons. The Society publishes the on-line peer-reviewed journal MNASSA (Monthly Notes of the Astronomical Society of Southern Africa). In addition to MNASSA, the annual handbook Sky Guide Africa South is distributed to members and is available for the public.

Some notable former members[edit]

Gill Medal[edit]

The Gill Medal is awarded by the Council of the Society for services to astronomy with special consideration to services in southern Africa. It was established in 1955 April and was first awarded in 1956 to Harold Knox Shaw.

The Medal commemorates Sir David Gill, HM Astronomer at the Cape (1879–1907), renowned for his numerous researches, especially in positional astronomy and geodesy, and for his part in consolidating astronomical science in Southern Africa. The Society awards the Gill Medal

The medal has been awarded to:


Various sections exist within the Society to coordinate 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[edit]

The autonomous local centres of ASSA hold regular meetings where visitors are welcomed. Centres are situated in Bloemfontein, Cape Town, Durban, the Garden Route, Harare (Zimbabwe), Hermanus, Johannesburg and Pretoria.

See also[edit]


  1. ^ Proctor, Mary; Crommelin, A.C.D. (1937). Comets. The Technical Press Limited Company. pp. 150 (n167). 
  2. ^ "The Jack Bennett Catalogue of Southern Hemisphere Objects". Retrieved 2009-08-20. 

External links[edit]