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The European Northern Observatory is the name by which the Instituto de Astrofísica de Canarias and its observatories (the Teide Observatory on Tenerife and the Roque de los Muchachos Observatory on La Palma) are collectively known.
The institute has one solar telescope on the Schauinsland Mountain near Freiburg and, in collaboration with other institutions, uses solar telescopes of the Teide Observatory in Tenerife, Spain.