The Sierra Nevada Observatory (OSN) is located in Loma de Dilar, in The ski resort of The Sierra Nevada (Granada, Andalucía). It is operated, mainteined and supplied by the Instituto de Astrofísica de Andalucía (IAA-CSIC). There are two telescopes of 1.5m and 0.90m apertures.
You may read a brief history of the OSNwhere the astronomical instruments used before the construction of the OSN are described, the origins of the observatory and why it is located in Loma de Dilar.
Telescopes (T90, T150) and instruments (CCDs, Albireo) control systems.