Portrait of Jacobus Cornelius Kapteyn, seated in the Monastery at Mount Wilson Observatory. Kapteyn is seated in a wooden Mission-style armchair with fabric-covered cushions. He is wearing a suit with a collar, necktie, and cuff links. The Monastery at Mount Wilson Observatory was a dormitory for visiting scientists. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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