Photo: John H. Martin. This image cropped from original image and saved in jpeg format with compression level 5 (Paintshop Pro) July 14, 2006 by John H Martin.,CC BY 2.5David Dunlap Observatory
Richmond Hill, ON
City
The David Dunlap Observatory is an astronomical observatory site in Richmond Hill, Ontario, Canada. Established in 1935, it was owned and operated by the University of Toronto until 2008.
From Wikipedia, CC BY-SA 4.0
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