About Ash-Dome
Built to last. Trusted worldwide.
Ash-Dome is a product of the Ash Manufacturing Company, a leader in the design and manufacturing of high quality domes and tracking instrument shelters. The Ash-Dome evolved from a new and different approach to the production of high quality observatory domes. The Ash-Dome is fabricated from the finest materials and products available to provide strength and stability in a dome shelter to withstand severe weather conditions around the world.
Over six decades of innovation in observatory design.
We pioneered rib-style construction and advanced shutter systems that have set the standard in the industry. Every dome we build reflects our ongoing commitment to precision engineering and continuous improvement.
Designed with Astronomers in Mind
Many of the features that define Ash-Dome observatories come directly from the people who use them — professional astronomers, engineers, and dedicated amateurs. Their feedback has shaped a product trusted by leading institutions around the world, while still remaining accessible to schools and private observatories.
Engineered for Strength and Simplicity
At its core, an Ash-Dome is a steel hemisphere constructed from interlocking segments, creating an exceptionally strong and durable structure. The signature “up-and-over” shutter design provides a protected aperture that can access any part of the sky, while minimizing wind turbulence inside the observatory. Unlike older biparting shutters, which expose the entire aperture even in high winds, Ash-Dome’s shutter system ensures stable, precise viewing under all conditions.
