Yerkes Observatory
| Title | Yerkes Observatory |
| View | Sunspots 1 |
| Series | II: Buildings and Grounds |
| Description | Sun with numerous spots. |
| Subject Terms | Sun | Sunspots | Solar activity | Astronomical photography |
| Photograph Date | 1926-02-19 |
| Physical Format | Photographic prints; 22.0 x 18.7 cm |
| Collection | Archival Photographic Files |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf2-08916 |
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