- keyword(s): northwestern settlement
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Abstract Records of Dearborn Observatory, built in 1865 by the Chicago Astronomical Society and the University of Chicago and in 1889 moved to Northwestern University's Evanston campus. Dearborn Observatory was a significant contributor in the area of double star research. The records consist almost entirely of observational data gathered by astronomers using Dearborn's 18-1/2 inch refracting telescope or its meridian circle, calculations performed on the data, and the results of such investigations.
- Names: Chicago Astronomical Society X