Dominion Observatory

Dominion Observatory
The Dominion Observatory building in 2022
OrganizationGovernment of Canada
Observatory code 790 
LocationCentral Experimental Farm, Ottawa, Ontario, Canada
Coordinates45°23′37″N 75°42′52″W / 45.393591°N 75.714329°W / 45.393591; -75.714329
Established1902–1905
Closed1970 (as observatory)
Telescopes
15-inch refractorRefracting telescope (largest installed in Canada at the time)
Location of Dominion Observatory
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The Dominion Observatory was an astronomical observatory and federal scientific institution in Ottawa, Ontario. It operated from 1902 until 1970 and played a central role in astronomy, timekeeping, geophysics, and surveying in Canada. The main building, designed by Chief Dominion Architect David Ewart, was constructed on the Central Experimental Farm between 1902 and 1905 in the Romanesque Revival style.