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Den Allegheny Observatoire ass en Observatoire vun der Fakultéit fir Physik an Astronomie vun der University of Pittsburgh a Pennsylvania, USA. Et gouf 1900–1912 gebaut. Seng gréisst Teleskope sinn den 30-inch-Thaw-Memorial-Refrakter an den 30-inch-Keeler-Memorial-Reflekter.
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