40 inch Yerkes telescope, Yerkes Observatory, Wisconsin, USA, 1915
4 0 c m
 
35cm
actual image size: 27cm x 32cm

40 inch Yerkes telescope, Yerkes Observatory, Wisconsin, USA, 1915

Warner & Swasey Company

© Science Museum / Science & Society Picture Library

Description

Photograph of the 40 inch refracting telescope at the Yerkes Observatory at Lake Geneva, Wisconsin in the United States. Built by the American company of Warner & Swasey Ltd with optics by Alvan Clark & Sons, the telescope was completed in 1897. This telescope was the primary instrument of the new observatory being established by the University of Chicago. The institution was established through the efforts of its first director, George Ellery Hale (1868-1938). He managed to convince Charles Tyson Yerkes, a Chicago railway tycoon (1837-1905), to fund the whole project. Today it is still the largest refracting telescope in the world.
 

Artist

 

Image Ref.

10418883
 

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