Title | Yerkes Observatory Buildings, Instruments, Equipment, Grounds |
View | Measuring Machine 55:812 (2008-003) |
Series | VI: Yerkes Observatory |
Description | Gaertner single-screw machine of Yerkes Observatory used for parallax plates to make precise measurements of line positions, front view. |
Subject Terms | Measuring instruments | Stellar parallax | Photographic plates | Astronomical instruments | Astronomical photography |
Photograph Date | 1911-10-23 |
Physical Format | Glass plate negatives; 19.8 x 24.4 cm |
Manufacturer | William Gaertner & Company |
Location | 373 West Geneva Street | Williams Bay, Wisconsin |
Campus Grid | Y01 |
Collection | Archival Photographic Files |
Repository | University of Chicago Library, Special Collections Research Center |
Image Identifier | apf6-01363 |
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