Astronomy--Observations

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...

Abstract The George Washington Hough Papers, spanning the years 1855 to 1909, comprise seven boxes and five Gaylord oversize folders. They are arranged in seven subseries: diaries and notebooks; correspondence; teaching material; research material; lectures; manuscripts and drafts; and published works. Included are diaries Hough kept as a student, lecture notes, professional and personal correspondence, class books, graded student exams, observational records, drawings of and data pertaining to...