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| What distinguishes Planetariums? |
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| Distinction based on size |
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The largest planetarium domes measure about 35 m in diameter. With a UNIVERSARIUM model, even domes with a diameter of 100 m can be transformed into a planetarium, as proven in the Globe Arena in Stockholm.
 | Diameter between | Seating Capacities |
| Small Planetariums | 5 m and 12 m | approx. 30 – 100 |
Medium-size
Planetariums | 12 m and 18 m | approx. 100 – 200 |
| Large Planetariums | larger than 18 m | approx. 200 – 400 |
| Distinction based on tasks |
- Original Planetariums:
scientific, general education, entertaining and cultural public functions
- Planetariums in Science Centers and Museums:
general education and entertaining public presentations
- Planetariums in Schools and Universities:
scholastic and instructional functions, partly open to the public
- Planetariums in Navigational Schools:
astronomic navigation training
| Distinction based on technologies |
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You will find planetariums with just an optical-mechanical planetarium projector. Others produce the visuals on the dome by means of a fulldome system only. The best option, of course, is combining optical-mechanical projectors with fulldome displays.
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| Carl Zeiss offer the broadest range of projection systems for all sizes of planetariums. |
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