| Title | Yerkes Observatory | 
| View | Nebular Spectrophotometer 3 | 
| Series | II: Buildings and Grounds | 
| Description | Director Charles R. O'Dell (1966-1972) in the South Building of Yerkes Observatory with the nebular photoelectric spectrophotometer on a reflector telescope. | 
| Subject Terms | O'Dell, Charles Robert, born 1937 | Spectrophotometers | Measuring instruments | Nebulae | Light--Measurement | Astronomical spectroscopy | 
| Photograph Date | Undated | 
| Physical Format | Contact prints; 5.2 x 3.5 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 | apf2-08786 | 
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