Australia's leading observatories for radio astronomy are used by astronomers from around the world, 24 hours a day, every day, to learn about our Universe.

Australia Telescope Compact Array

The Australia Telescope Compact Array (ATCA), at the Paul Wild Observatory, is an array of six 22-m antennas used for radio astronomy. It is located about 25 km west of the town of Narrabri in rural NSW (about 500 km north-west of Sydney).

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We will be closed from noon 22 December 2017 and re-open 10am (AEDT) on 2 Jan 2018. We wish you a safe and happy festive season.

Between Tue 2 Jan – Fri 5 Jan our phone operating hours will be 10am – 3 pm (AEDT).

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