Mount Stromlo Observatory (MSO) is the headquarters of RSAA, located in Canberra in the Australian Capital Territory. It is the administrative centre of the school, and the offices of the astronomers and students, the mechanical, electronic and optical workshops, and computer laboratories are located at MSO. The observatory is also home to the Advanced Technology Instrumentation Centre (AITC), a world-class facility for developing and testing astronomical instrumentation, small satellites and space payloads.
Siding Spring Observatory (SSO) is located in the Warrumbungle region of New South Wales, at a height of 1164m. SSO began as a field station for the Mount Stromlo Observatory when light pollution from Canberra began to adversely affect sky visibility from MSO. It has since become Australia's premier facility for optical and infrared astrophysics observations. ANU also operates accommodation facilities for observing astronomers and the Exploratory visitor's centre at SSO.
The Siding Spring Observatory (SSO) of the Australian National University is home to all the research telescopes of the university. SSO also hosts a growing number of other national and international facilities, with more telescopes planned to be built and commissioned between 2011 and 2015.