Distinguished by its impressive dimensions, the Planétarium automaton presents the Sun and many of the planets of its system visible from the Earth: Mercury, Venus, the Earth – accompanied by its satellite, the Moon –, Mars, Jupiter and Saturn. Thanks to a mechanical movement of great complexity, each heavenly body moves at its genuine speed of rotation. When the animation starts, a shooting star appears from a small door and circles the dial to indicate the hours. It sweeps the planets along in a veritable ballet – accompanied by a cristalline melody.