Siding Spring Observatory

Siding Spring Observatory is Australia's premier optical astronomy facility located on Mount Woorat (1165m) near Coonabarabran in Warrumbungle Shire, New South Wales. Operated by the Australian National University, it hosts Australia's largest optical telescope, the 3.9m Anglo-Australian Telescope, along with numerous other telescopes. Situated on the edge of Warrumbungle National Park within Australia's first Dark Sky Park, it is notable for research, dark skies and public education.

Visitors can explore the observatory grounds on Siding Spring Mountain with panoramic views over Warrumbungle National Park. The site features multiple telescope domes including the Anglo-Australian Telescope, a public visitor gallery and Exploratory with astronomy exhibits, scale models and interactive displays. Visitors can view telescopes from outside, enjoy the exhibition area, picnic facilities and scenic lookouts. Guided tours and occasional night sky programs are available, with daytime access focused on sightseeing and education.