Peninsula House and Tebbutt's Observatory

Peninsula House and Tebbutt's Observatory is a residence with Georgian architecture and brick walls located in Windsor. The property covers about 3 hectares and features two brick observatories on the grounds: a smaller round structure and a larger circular building designed for astronomical studies.

John Tebbutt established the observatory in 1845 and discovered a significant comet from this location in 1861. The site became a center for astronomical research and international scientific connections during the 19th century.

The residence and observatory demonstrate how scientific work held importance in early Australian society. Visitors can see today how this place once served as a center for astronomical observation and international scientific exchange.

The property sits on elevated ground, which protected original structures from Hawkesbury River floods over the years. Visitors should explore the grounds to see both the residence and the two distinct observatories in their full settings.

The two brick observatories were designed and built for different purposes, showing how Tebbutt's astronomical methods evolved over time. These structural differences reveal the advances in observation techniques throughout his working life.

Location: New South Wales

GPS coordinates: -33.60730,150.83130

Latest update: December 14, 2025 14:20