Ash-Dome Observatory Domes
Built to last. Trusted worldwide.
Ash-Dome Model R
For dome sizes 16’6” diameter or smaller
Typical uses: smaller telescopes, education/outreach, personal observatories
Ash-Dome Model M
For dome sizes 18’6” diameter or larger
Typical uses: research-grade telescopes, professional/remote observatories
For more than 70 years, Ash-Dome has set the standard for durable, precision-engineered observatory domes. Built in-house in the U.S. and trusted worldwide, our domes are designed to stand the test of time while supporting astronomy at every level, from personal observatories to schools, universities, and leading research institutions.
Model R
Compact strength for serious observing.
Compact, efficient, and engineered for lasting performance. The Model R offers reliable protection and smooth operation for telescopes of various sizes. Its smaller footprint makes it an excellent fit where space is limited, while still providing the durability and flexibility needed for research, education, and personal observatories.
Key Features
- Sized for smaller telescopes — up to 16’6” diameter
- Durable lightweight construction — built for strength and efficiency in limited-space projects
- Perfect for outreach, education, or private observatories
- Customizable with shutter style, aperture size, and control system
Options
Shutter Style
- Type A: Ideal if horizon is obstructed (light pollution, trees, or buildings). Lower section doubles as a windscreen or occulting device.
- Type B: Best for wide-open skies and remote use, offering clear viewing from 0°–105°.
Aperture Sizes
- Standard
- Wide
Control System
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Manual Rotary Switch (simple drum switch)
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Automated System (computer-controlled, able to track with ASCOM-compatible telescope)
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Optional Contactor Bars for continuous power in remote/robotic setups
Substructure
- Ash-Dome steel-framed or wood-framed support wall
- Customer-provided building
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Model M
Heavy-duty protection for world-class telescopes.
Spacious, reinforced, and built for larger-scale installations. The Model M is designed to accommodate larger telescopes, additional equipment, and multiple users while maintaining the same durability and smooth performance Ash-Dome is known for. Ideal for projects that require more interior space, this model offers flexibility for institutions, schools, research facilities, and serious personal observatories alike.
Key Features
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Sized for large telescopes — 18’6” diameter and above
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Heavy-duty reinforcement — built for strength and longevity
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Ideal for research, remote, and robotic observatories
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Full automation ready with contactor bar compatibility
Options
Shutter Style
- Type A: Ideal if horizon is obstructed (light pollution, trees, or buildings). Lower section doubles as a windscreen or occulting device.
- Type B: Best for wide-open skies and remote use, offering clear viewing from 0°–105°.
Aperture Sizes
- Standard
- Wide
Control System
-
Manual Rotary Switch (simple drum switch)
-
Automated System (computer-controlled, able to track with ASCOM-compatible telescope)
-
Optional Contactor Bars for continuous power in remote/robotic setups
Substructure
- Ash-Dome steel-framed or wood-framed support wall
- Customer-provided building
-
Not Sure which dome is right for your project?
Expert Guidance for Every Observatory Project
Every observatory site and telescope setup is unique. Our team has decades of experience matching the right dome to each project — from backyard installations to professional research facilities.