Yerkes Observatory
| Title | Yerkes Observatory |
| View | 40-inch Refractor Telescope 11 |
| Series | II: Buildings and Grounds |
| Description | Eye-end of the Yerkes Observatory 40-inch refractor telescope. The photoelectric parallax scanner which measures parallaxes and proper motions is attached. |
| Subject Terms | Refracting telescopes | Cameras (Photographic equipment) | Measuring instruments | Proper motion | Stars |
| Photographer | Tapscott, Joseph; Yerkes Observatory |
| Photograph Date | 1970s |
| Physical Format | Photographic prints; 19.4 x 22.3 cm |
| Location | 373 W. Geneva Street | Williams Bay, Wisconsin |
| Campus Grid | Y01 |
| Collection | Archival Photographic Files |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf2-08774 |
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