Yerkes Observatory

Yerkes Observatory

Yerkes Observatory
40-inch Refractor Telescope 10
II: Buildings and Grounds
Yerkes Observatory 40-inch refractor telescope is sixty-three feet long, and the dome over it is ninety feet in diameter. The floor below it measures seventy-five feet across, and can be raised and lowered twenty-three feet, a range which allows the telescope to point at objects near the horizon or at the zenith.
Refracting telescopes | Observatory domes | Floors (Surface elements) | Astronomical observatories
Tapscott, Joseph; Yerkes Observatory
Photographic prints; 23.8 x 18.3 cm
373 W. Geneva Street | Williams Bay, Wisconsin
Archival Photographic Files
University of Chicago Library, Special Collections Research Center

View information about rights and permissions.

View information about ordering reproductions.