Museum-grade permanent planetarium
Tholus Landmark
A turnkey fulldome built to last. From 9 to 30 metres, with a professional rigid screen and calibrated multi-projection.
From CHF 159’000 VAT excl.
Not a temporary fit-out
Architecture
that becomes a destination.
Tholus Landmark is for museums, science centres and institutions that demand stable geometry, a professional finish and a long operating life.
Inside the system
Six reasons to choose rigid.
Scroll through the project, from structure to opening day.
Scroll to explore ↓
01 · Presence
It does not occupy a space. It defines it.
A permanent dome becomes part of the venue’s architecture and identity.
- Museum-grade
- Permanent
02 · Structure
Geometry stays where it belongs.
The rigid frame holds the system’s shape and references, even at large scale.
- Rigid
- Stable
03 · Surface
The image meets professional aluminium.
Microperforated panels, a uniform finish and a surface designed to disappear under projection.
- Microperforated
- Uniform
04 · Audio
Sound comes from the scene.
Loudspeakers can sit behind the screen, so audiences hear in the same direction they look.
- Integrated audio
- Acoustically transparent
05 · Projection
Multiple channels. One image.
Multi-projection, warping and blending are calibrated to the real geometry and controlled by TholusOS Enterprise.
- Fulldome
- TholusOS
06 · Delivery
Complete means ready to open.
Design, assembly, testing, documentation, training and commissioning come from one partner.
- Turnkey
- Commissioned
Built on site
Quality is visible before switch-on.
Structure, supports and screen are assembled and verified as one system.
Professional surface
Microperforated aluminium. Image, sound, longevity.
A rigid screen made from microperforated aluminium panels, fixed to the structure and free from pressurised membranes. It preserves geometry, distributes the image evenly and lets audio sit behind the projection surface.
Controlled optics
Low gain, uniformity and flatness are specified for fulldome multi-projection.
Invisible audio
Perforations pass sound, keeping the acoustic scene aligned with the image.
Stable geometry
The rigid structure holds system references and protects calibration quality.
Longer expected life
Materials and construction are designed for a permanent, serviceable and upgradeable theatre.
Five diameters
From a compact landmark to a major institution.
Every configuration is turnkey: rigid dome, microperforated screen, multi-projection, audio, content, calibration and five years of TholusOS Enterprise.
Compact quality
Tholus Landmark 9
Rigid quality for a more intimate theatre.
CHF 159’000 VAT excl.
- 9-metre rigid dome
- Acoustically transparent aluminium
- Calibrated multi-projector system
- TholusOS Enterprise for 5 years
Museum scale
Tholus Landmark 15
For museums and institutions with a medium-scale audience.
CHF 349’000 VAT excl.
- 15-metre rigid dome
- Acoustically transparent aluminium
- Calibrated multi-projector system
- TholusOS Enterprise for 5 years
Large audience
Tholus Landmark 20
More surface and a clear architectural presence.
CHF 789’000 VAT excl.
- 20-metre rigid dome
- Acoustically transparent aluminium
- Calibrated multi-projector system
- TholusOS Enterprise for 5 years
Major institution
Tholus Landmark 25
For reference planetariums, museums and attractions.
CHF 989’000 VAT excl.
- 25-metre rigid dome
- Acoustically transparent aluminium
- Calibrated multi-projector system
- TholusOS Enterprise for 5 years
Monumental scale
Tholus Landmark 30
A fulldome destination that defines the venue.
CHF 1’349’000 VAT excl.
- 30-metre rigid dome
- Acoustically transparent aluminium
- Calibrated multi-projector system
- TholusOS Enterprise for 5 years
Prices exclude VAT. They include design, supply, assembly, testing, commissioning and the technical documentation or certification within our scope. The final proposal is confirmed against the real site. Any building permits or other approvals that may be required, masonry work and bases other than the standard PVC flooring we supply are not included in the price.
Project data
Capacity, layouts and performance.
A verifiable technical configuration for every diameter.
Indicative capacity by diameter*
Layout changes capacity. The table separates a seated fulldome theatre from standing use.
| Diameter | Planetarium: children seated on floor | Planetarium: seated adults | Fulldome with chairs | Standing event |
|---|---|---|---|---|
| 9 m | — | — | 55–65 | 60–70 |
| 15 m | — | — | 130–145 | 220–240 |
| 20 m | — | — | 200–220 | 400–440 |
| 25 m | — | — | 320–345 | 800–890 |
| 30 m | — | — | 450–510 | 850–925 |
* Capacities depend on the layout and approvals. Seating, technical space, aisles, exits, accessibility and building requirements determine the actual number.
Method and safety
Safety enters the design from the start.
Structure, audience, services and building are coordinated before production and assembly.
- Survey and detailed design coordinated with the building structure, loads, access, services and venue requirements.
- Seating, accessibility, aisles and exits sized in the layout submitted for the applicable approvals.
- Assembly checks covering structure, panels, fixings, electrical systems, projection and audio.
- Commissioning, required documentation, staff training and final capacity confirmed only against the approved design.
Professional dome
A permanent planetarium is an architectural system.
Architecture, optical surface, audio and multi-projection are integrated into the theatre.
- Rigid frame and microperforated aluminium panels hold geometry without pressurised membranes.
- An acoustically transparent surface allows audio to sit behind the image.
- TholusOS Enterprise controls geometry, blending, colour and brightness on the real theatre.
- Design, server, software, content, games, training, commissioning and a 3-year European warranty form part of the system.
Standard-system performance
Effective resolution is set by the projection architecture: approximately 2K with three projectors and approximately 4K with five. The final channel count depends on the theatre design.
| Diameter | System | Effective dome resolution | Resolution per projector | Assembly and recalibration |
|---|---|---|---|---|
| 9 m | Project-defined multi-projection | approximately 2K–4K, depending on system | 1920 × 1200 | project installation; recalibration approximately 1 hour |
| 15 m | Project-defined multi-projection | approximately 2K–4K, depending on system | 1920 × 1200 | project installation; recalibration approximately 1 hour |
| 20 m | Project-defined multi-projection | approximately 2K–4K, depending on system | 1920 × 1200 | project installation; recalibration approximately 1 hour |
| 25 m | Project-defined multi-projection | approximately 2K–4K, depending on system | 1920 × 1200 | project installation; recalibration approximately 1 hour |
| 30 m | Project-defined multi-projection | approximately 2K–4K, depending on system | 1920 × 1200 | project installation; recalibration approximately 1 hour |
Standard projectors
Single-chip DLP, 7,500 lumens, 1920 × 1200 and 1500:1 contrast per projector.
Usable brightness
Optics, warping, blending and calibration reduce nominal brightness. Usable dome brightness is measured after calibration.
Blending and resolution
Overlap zones use part of the pixels and light to merge images, so effective resolution is lower than the mathematical sum of the projectors.
Uniformity with TholusOS
TholusOS Enterprise corrects geometry, colour and brightness to equalise the dome. Output can vary between points.
Calibration
Guided calibration takes approximately 30 minutes. Initial assembly follows detailed design; multi-projector recalibration takes approximately 1 hour.
Included in every package
The theatre is delivered as a complete operating system.
- Audio system
- Complete projection system: mirror projection where a single channel is specified, calibrated multi-projection in other cases
- Base content package
- Stellarium and WorldWide Telescope
- 2 immersive games
- Operational training
- Tholus server
- TholusOS Enterprise for 5 years
- 3-year European warranty
Operational continuity
Three-year warranty, SLA and maintenance.
Commissioning, spares and maintenance are defined for the installed theatre.
Warranty
3-year European warranty on the Tholus Landmark supply, under the contract terms and applicable law.
SLA response times
P1, system stopped or show impossible: acknowledged within 1 business day. P2, degraded service: within 2 days. P3, non-blocking requests: within 3 days.
Replacement
A covered critical spare is dispatched within 3 business days when in stock. Otherwise, we provide a dated recovery plan within 2 days. Transit time depends on the destination.
Spare parts
The original component or a compatible replacement remains available for at least 10 years after delivery. Critical spares are identified in the technical documentation.
Remote assistance
Included during the warranty for diagnostics, configuration, TholusOS and calibration support, with access agreed with the customer.
On-site service
Available across Europe on request. After diagnosis, we provide a plan and quotation within 3 business days, targeting an intervention within 10 business days, subject to site access and travel.
Maintenance programme
Annual preventive programme covering structure, ventilation, projection, audio, server, safety and calibration, plus an additional check after relocation or work on optical components.
Landmark institutional supply
Handover includes testing, training and documentation.
- Installation, calibration, testing and commissioning of the theatre.
- Audio system sized for the geometry, audience and operating programme.
- Operator training and handover of the verified configuration.
- Starter content package, Stellarium, WorldWide Telescope and 2 games.
- 3-year European warranty and support governed by the published SLA.
- Project-defined critical spare kit delivered at commissioning.
- Manuals, as-built diagrams, calibration record, maintenance plan and spare-parts list.
- Conformity dossier prepared for the applicable rules and destination-country requirements.
Single responsibility
From design to a commissioned theatre.
A permanent planetarium must work with the building, audience and services. We coordinate it as one project.
- 01
Design
We verify structure, access, seating, services and requirements.
Project defined - 02
Build
We install structure, screen, audio and projection.
Theatre complete - 03
Calibrate
We align geometry, brightness, colour, blending and control.
Image verified - 04
Commission
We complete tests, documentation, training and launch.
Planetarium operational
The proposal is confirmed against the detailed design.
Where it becomes a reference
One theatre. Many programmes.
Museums and planetariums
Astronomy, science and fulldome film in an institutional setting.
Science centres and universities
Visualisation, teaching, research and shared presentations.
Destinations and flagships
Distinctive architecture for culture, tourism and brand experiences.
Art and live performance
Immersive cinema, music, performance and interactive content without headsets.
Before design begins
The essential questions.
Why choose a rigid dome?
For geometric stability, a professional surface, behind-screen audio and a longer expected life. It is especially recommended from 15 metres upwards.
Does it require a continuously running turbine?
No. The screen consists of rigid panels fixed to the structure: it uses no pressurised membrane and needs no continuous turbine to hold its shape.
What does the price include?
The complete turnkey system: dome and screen, multi-projection, audio, base content package, Stellarium, WorldWide Telescope, two games, training, Tholus server, five years of TholusOS Enterprise, design, assembly, testing, commissioning, a three-year European warranty and the technical documentation or certifications within our scope. Any building permits or other approvals that may be required, masonry work and bases other than the standard PVC flooring we supply are not included in the price.
Can audio sit behind the screen?
Yes. Microperforated aluminium panels are acoustically transparent and allow loudspeakers to be placed behind the projection surface.
Is it only for astronomy?
No. It can host fulldome films, science, art, music, events, presentations and interactive content. We can also provide immersive content and games.
How long does delivery take?
It depends on diameter, building, ancillary works and approvals. The schedule is defined in the executive project before work begins.
The next landmark
We start from the real space.
Share the plan, height, expected audience and objective. We will define the right scale and technical route.