Discovery of Centaurus A

Date: April 29, 1826 • Location: Parramatta, Australia

In Parramatta, Australia, Scottish astronomer James Dunlop discovered Centaurus A (pictured), which was later recognised as one of the nearest radio galaxies to Earth.

Parramatta is a city and major commercial centre in Greater Western Sydney. It is located approximately 24 kilometres (15 mi) west of the Sydney central business district on the banks of the Parramatta River. It is commonly regarded as the second CBD of metropolitan Sydney.