Harry Clive Minnett OBE (12 June 1917 – 20 December 2003)[1] was an Australian physicist and radio engineer who, with Jack Piddington, co-discovered Sagittarius A*,[2] the black hole at the centre of the Milky Way, and played a leading role in building the Parkes Radio Telescope.
Minnett was appointed Officer of the Order of the British Empire (OBE) in 1972, and elected a fellow of Australian Academy of Science in 1976.
Minnett joined the CSIR (later the CSIRO) in 1940, as part of the Radiophysics Laboratory which pioneered radar technology in Australia, where he worked with and was mentored by Joseph Pawsey, Jack Piddington, and Taffy Bowen.
After the war he collaborated with Piddington on microwave-frequency radio astronomy, operating independently from Pawsey's research team who were using lower frequencies.
In 1978, Minnett was appointed Chief of the Division of Radiophysics at the CSIRO, a position he held until his retirement three years later.