Who are we?


The Sierra Nevada Observatory (OSN) is a high mountain observatory located in Loma de Dilar, in the ski resort of the Sierra Nevada mountain range (Granada). The OSN is operated, maintained and supplied by the Instituto de Astrofísica de Andalucía (IAA-CSIC). It consists of a main building which hosts two Nasmyth optical telescopes of 90-cm and 1.50-m diameter each, as well as a 60-cm IR semi-automated telescope and a 35-cm telescope.   

       Observatorio de Sierra Nevada

Geographical coordinates OSN

Latitude: 37º 03´ 46.41" N
Longitude: 03º 23´ 09.75" W
Altitude: 2935 m