Coonabarabran lies in central-western New South Wales near the Warrumbungle ranges, on the Country of the Gamilaraay/Kamilaroi people. Low population density, relatively low humidity, elevated terrain and limited artificial light make darkness more than the absence of urban illumination. It is one of the district's most valuable environmental conditions.
The Australian National University established Siding Spring Observatory on Mount Woorut, about 25 kilometres from town, and the site opened in the 1960s. It was chosen for dark, frequently clear skies and a low risk of future light pollution. The observatory is now Australia's leading optical and infrared astronomy facility, hosting telescopes operated by institutions from several countries. Nearby Warrumbungle National Park became the southern hemisphere's first accredited International Dark Sky Park in 2016.
That resource cannot be preserved by simply doing nothing. The national park redirects lights downwards, adds shields and timers, and has no street lighting within the Dark Sky Park. Research facilities, nocturnal wildlife, landscape protection and public stargazing therefore share the same constraints on illumination. In 2026 the park marked ten years of dark-sky recognition, while observing events and StarFest continued to connect the research precinct with services in town.
Coonabarabran's memorable feature is larger than one enormous telescope. It has turned a quality often treated as emptiness into public infrastructure: science needs it, ecosystems need it and local events depend on it. The town shows that a natural resource need not be extracted or transported. Sometimes its value depends on whether a community is willing to limit its own light.
https://www.anu.edu.au/about/campuses-facilities/siding-spring-observatory
https://www.nationalparks.nsw.gov.au/conservation-and-heritage/our-parks/dark-sky-parks
Discover more from Geoffrey Chen
Subscribe to get the latest posts sent to your email.