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Vacuum tower telescope

evacuated-optics solar telescope located at the Teide Observatory on Tenerife in the Canary Islands

Pronunciation
/ˈvakjuːm ˈtaʊə ˈtɛlɪskəʊp/
/ˈvækˌjuəm ˈtaʊər ˈtɛləˌskoʊp/