ABSTRACT
The David Dunlap Observatory (DDO) is located 25 km north of the center of Toronto, Canada, in the town of Richmond Hill at 79d 25' 20''W and +43d 51'' 46''N. Operated as a research and educational facility of the Department of Astronomy at the University of Toronto, DDO is the site of a 1.88 m reflecting telescope, the largest in Canada
