Neptunus: a planet in the bay


Around Laajalahti bay, between Espoo and Helsinki, a small size model of solar system has been built. With the scale 1:1,000,000,000, Neptunus is a 5cm diameter blue ball, 4.5 km away from the sun. It is located in Lehtisaari island, in front of Otaniemi campus.

Presentation of the model can be found (in Finnish) on Ursa Astronomy Association website: