Ull del Montsec is a unique facility in the world. It consists of a digital planetarium equipped with a 3D full dome projection system that allows the recreation of both current sky and any era sky, as well as the exhibition of films in full dome format. This allows to show the visitor other aspects than purely astronomical topics, projected in the 12 meters dome with the highest performance thanks to the 3D active system.


This equipment is also a platform for live sky observation. Its 12 m diameter dome and front wall open completely, leaving the visitor under the spectacular sky of Montsec.