Wildrik Botjes Planetarium
The Botjes planetarium is a fully operational model of the solar system completed in 1868. It is on display in North Hall.
Enter North Hall through the southeast door. The planetarium is opposite the door.
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Orbits of the Planets
- See how the planetariuim can predict the motion of the planets.
Motions of the Sun and Moon
- While the planets model shows the earth orbiting the sun, this model shows the perspective from Earth.
The Celestial Sphere
- The celestial sphere is a model for the two-dimensional direction to the stars.
- The planetarium has kept the time of day and day of the week for 130 years
Mechanism and Restoration
- Discover what makes the Botjes planetarium tick.
History of the Botjes Planetarium
- The Botjes Planetarium has traveled across continents and been passed down the generations.
- Wildrik Botjes constructed another planetarium with some modifications to his earlier design.
- See how planetariums and models contribute to the scientific mission.
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