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12th of October 2021
The Kennedy antenna at Parkes
The Kennedy 18-m antenna at Parkes was originally used at the Fleurs radio astronomy site 40km from Sydney. It was transferred to the Parkes site in 1963 and mounted on railway tracks for use as a variable baseline interferometer with the Parkes 64m dish. Venkatraman Radhakrishnan, Miller Goss and John Murray used that instrument to make the first HI absorption measurements. In 1973 Don Mathewson and John Murray used a modified version of the original receiver on the Kennedy dish to discover the Magellanic stream -– a trail of gas extending from the Large and Small Magellanic Clouds galaxies and halfway around our own. John Sarkissian took this image in 2001.

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