McKim Observatory

McKim Observatory is an astronomical facility in Greencastle housed in a historic building with a dome that was constructed in 1884. Inside, the building contains four specialized rooms dedicated to different astronomical functions, along with a refracting telescope with a 24.2-centimeter aperture located on the second floor.

The building was constructed in 1884 after Robert McKim provided funding to create a center for astronomical research and teaching. In 1978, it earned recognition on the National Register of Historic Places due to its importance in architectural and scientific history.

The observatory served as a gathering place where students and local people could explore the sky together and learn from those with expertise in astronomy. This educational role shaped how the building is used today and remains central to its purpose as a community learning space.

The observatory is open to visitors on scheduled weekends, though reaching the telescope requires climbing stairs since the historic building lacks modern accessibility features. Planning ahead for current hours and wearing comfortable footwear for stairs will help you prepare for your visit.

The telescope was crafted by the renowned manufacturers Warner & Swasey and Alvan Clark & Sons and was specially selected for scientific observation work. The pairing of these high-quality instruments with the specialized rooms creates a remarkable example of professional-grade astronomical equipment from the 1800s.

Location: Greencastle

GPS coordinates: 39.64556,-86.85250

Latest update: December 14, 2025 16:44