Mobile Planetariums
Standard, raised and accessible inflatable domes, alongside geodesic and open air domes for indoor and outdoor events.
Best Mobile Planetarium SpecialistsGreater London Awards
on the update service
certificates with every booking
The world’s largest stock of domes
We have the world’s largest stock of domes, from 3m – 27m, utilising both geodesic and inflatable domes for indoor and outdoor use, as well as open air domes to create quickly deployable venues for events.
We have domes for all occasions and for any event and theme you require, whether you need a temporary or semi-permanent solution. All of our domes can be turned into projection domes.
Choose the right dome for your space
Tell us the size of your space and we'll recommend the right dome. Every figure below comes from our risk assessment, so what we quote is what we bring.
Standard domes
Our classic inflatable planetarium. Pupils sit or lie back under a full 360° sky.
Raised domes
The screen sits on 1–4 inflated ring walls for extra headroom and a theatre feel, with room for chairs.
Accessible domes
Tunnel entrance with no door, so wheelchair users roll straight in with a companion seat beside them.
| Dome | Dome height | Floor space (incl. entrance) | Minimum ceiling | EYFS–KS2 per show | KS3–KS4 per show | Adults per show | SEND incl. carers | Set-up / pack-down | Wheelchair spaces (Accessible dome) |
|---|---|---|---|---|---|---|---|---|---|
| 4 m | 2.5 m | 5 × 6.5 m | 3 m | 15 | 12 | 8 | 7 | 45 / 30 min | – |
| 5 m | 3.1 m | 6 × 7.5 m | 3.5 m | 25 | 18 | 13 | 12 | 45 / 30 min | – |
| 6 m | 3.8 m | 7 × 8.5 m | 4.5 m | 35 | 25 | 20 | 17 | 60 / 45 min | 4–6 |
| 7 m | 4.4 m* | 8 × 9.5 m | 5 m | 45 | 35 | 25 | 22 | 60 / 45 min | – |
| 8 m | 5.0 m* | 9 × 10.5 m | 5.5 m | 60 | 45 | 35 | 30 | 60 / 45 min | 6–10 |
| 9 m | 5.7 m* | 10 × 11.5 m | 6 m | 75 | 55 | 45 | 37 | 90 / 60 min | – |
| 10 m | 6.3 m* | 11 × 12.5 m | 7 m | 90 | 70 | 55 | 45 | 90 / 60 min | 8–14 |
Figures from our risk assessment IE-RSK-PLN-001 v3.2. * Calculated, confirmed on site. Floor space allows 0.5 m clear all round plus a 1.5 m entrance zone. Raised domes add 0.3 m of height per ring and need more floor space: use the Dome Finder above or ask us.
Specifications updated 9 November 2026, subject to change and reviewed annually. Heights for 7m–10m domes are calculated and confirmed on site.
Our ‘Gold Standard’ fleet of domes
Unlike other inflatable domes, which are built mainly for analogue projectors (non-digital), our portable planetariums (also known as star domes, mobile domes or digital domes) are designed and developed to meet today’s changing digital technology. They are durable, lightweight for easy transport, with a very high-quality material projection screen.
Ready to go
- Integrate our various projection solutions, up to 4K from one single projector, either fisheye or Newtonian
- DLP, laser and 3D projectors available
- VR, AR and 3D integration
- Accessible for a wide audience range, including wheelchairs, special needs and induction loops
- Available in either blue or black outside cloth colour
Safety features
- The ‘5-second dome flip’ provides a fast emergency exit in case of emergency evacuation
- Fully flame-retardant fabric with certification
- Positive pressure domes mean that even with a power outage, the dome remains up longer, allowing the audience to exit safely
- Internal ventilation air system to allow better air flow, reducing mould, mildew, bacteria and virus formations
- UV-sterilisable screens with no colour damage
Advanced technologies
- The airlock design simulates space age technology — beginning their “out of this world” experience. The double-door, vestibule design creates a quick seal behind each admittance so that light, late arrivals or those who must leave unexpectedly do not disturb your show in progress. The dome door is 2m (7 feet) tall in 5m or larger domes, allowing easy “walk-in” entry with minimum air loss per admittance.
- Our airlock door is easily detached from the floor to allow wheelchair users easier access.
- The entryway has a continuous non-skid floor that allows the vertical tubes to move sideways to allow adults to enter.
- Our custom-made soft grey projection screen reduces cross-reflection (internal reflections that cause dark areas to be illuminated by reflections from bright areas) for rich colours and pleasurable viewing.
- The optimised surface is shine-free, which allows even the brightest digital dome shows to be viewed without glare. The special fabric also reduces sound reflections, making the experience the best it can be.
- The cloth used in each product is custom made for our specific application, and designed with the highest standards possible for fire retardancy. Each batch of cloth manufactured has to pass stringent laboratory testing for fire retardancy before it is accepted for manufacturing of the dome. The doorway can be zippered shut for full-dome projection applications but can be left open for easy access.
- The dome features self-regulated outlet vents in the side opposite the door, which open up for through-circulation when the dome is fully inflated, and automatically close if the dome loses air when a group exits.
- The air inlet from the fan is forked: part inflates the doorway and part goes directly into the dome near the doorway to provide efficient air circulation inside the dome, keeping the projection system cool.
- The vent system not only keeps air circulating inside the dome but stops the characteristic “bouncing” of typical closed system domes – if the dome overinflates, the vents open completely with a light baffle. No bouncing means no strobing light leaks to disturb the presentation inside!
Our ‘authentic feel’ fleet of domes
For customers needing a more traditional planetarium theatre experience, we offer domes with rings. These rings give the dome a vertical wall below the projection surface (also known as the spring line). The rings are inflated by the same fan that inflates the dome. Each ring is about 30cm (1 foot) high and our raised domes come with 1, 2, 3 or 4 rings. The primary purpose of the rings is to raise the projected horizon in the dome. By using three or more rings, standard folding chairs can be used in the dome for seating and the fulldome image is projected above the heads of the seated audience.
One or two rings hold the dome diameter and add to stability. Three or four rings provide a wall against which chairs can be placed. Customers wanting a dome structure with chairs often choose the ring dome.
From first call to opening day
Enquire
Tell us your venue, dates, audience and theme. We'll recommend the right experience and package.
Plan & recce
A full site visit, in person or virtual, with a risk assessment matched to your venue's procedures.
We install & run
Our team sets up, runs the experience with a designated event officer, and looks after your visitors.
Pack down
We clear everything away, leaving your space exactly as we found it.
More from our dome range
Documents available on request
Please contact us for:
- Terms and Conditions
- Risk Assessments & Method Statements
- Insurance certificates (public liability, indemnity, employers' liability)
- Fire Certificate, PAT Certificate
- Child Protection & Audience Code of Conduct
Your questions answered
How many domes do you have?
Over 35 domes in our portfolio, from pop-up to festival scale, including standard, raised and accessible inflatable domes, geodesic domes and open-air domes.
Can your domes be used outdoors?
Yes. Our geodesic and open-air domes are designed for indoor and outdoor events.
Can we buy a dome as well as hire one?
Yes. See our Buy Mobile Planetariums page, or ask us for advice.
Find the right dome for your space
Tell us the size of your space and your audience and we’ll recommend the right dome.