Light pollution is defined as the introduction of artificial light to an ecosystem (into naturally dark situations), degrading its natural state with the emission of light of different intensities, directions, spectral range and/or unnecessarily varying

The Milky Way is the galaxy in which Earth and the Solar System lies. It contains more than 200 000 million of stars and its diameter is estimated to be about 100 000 light-years (about

The astronomical viewpoints are accessible places with open views to the sky and that serve to interpret the stars in the open air. In La Palma these places have explanatory panels and car parks. There