3.1 The solar system on a new scale
The orbits of the planets in our solar system are partially marked on the floor.
Moving away from the Sun, we have Mercury, Venus, the Earth, Mars, Jupiter, Saturn, Uranus, Neptune and the dwarf planet Pluto.
The light of the Sun takes approximately 8 minutes to reach us. To reach Pluto, it takes almost 5 hours. The next star, Alpha Centauri, is 4.3 light years from us.
On a similar scale to this display, Alpha Centauri would be situated at the summit of the Grammont, 15,6 kilometres from here.