Associated with the gun site was the research site of the Army Operational Research Group (AORG), located on the polo field beside Sheen Cross, where Stanley Hey researched improvements to the operation of anti-aircraft gun-laying radar. During the war, Hey discovered that the Sun is a radio source and he investigated radio reflections from meteor trails, and radio noise from cosmic sources. In 1946 Hey's group discovered Cygnus A, later shown to be the first radio galaxy. The Richmond Park installation thus became the first radio observatory in Britain.
Associated with the gun site was the research site of the Army Operational Res?earch Group (AORG), located on the polo field beside Sheen Cross, where Stanley Hey researched improvements to the operation of anti-aircraft gun-laying radar. During the war, Hey discovered that the Sun is a radio source and he investigated radio reflections from meteor trails, and radio noise from cosmic sourc.es. In 1946 Hey's group discovered Cygnus A, later shown to be the first radio galaxy. The Richmond Park installation thus became the first radio observatory in Britain.