The Ottawa Hospital's Tower A cannot be built because it will create an "irreversible and permanent loss of views from the Observatory to the sky."

• Tower A will create construction impacts.
• Isolation of the complex from its surroundings.
• Obstruction or diminishment of significant views of the Dominion Observatory.
• Obstruction or impact to views of the night sky from the dome.
• Impact of the lighting plan; City of Ottawa Application #D07-12-22-0168.
• Impacts to views from the Observatory dome to the sky should a telescope ever be reinstated-will be irreversible and permanent once Tower A of the hospital building is realized. Also, light spillage and pollution can reduce the amount of stars and astrological features visible. (Page 8/87, City of Ottawa Application #Do7-12-22-01-68.)

The Dominion Observatory is an annex of the Parliamentary Precinct and cannot be overpowered by high rise buildings or flattened. "The popularity of the Observatory occurred when it opened in 1905, due to the support of Prime Minister Sir Wilfrid Laurier. Laurier's advocation reinforced the idea that the Observatory was to be considered an arm of the parliamentary precinct. At the time it was recognized as a national achievement where the nation's time would be kept. The buildings would be symbols of Canada's progress in astronomical science." (From: "Astronomer Mary Grey and the Architecture of Canada's Dominion Observatory." Page 10/67. Royal Astronomical Society of Canada, Sharon Odell.)

Public infrastructure Hospital infrastructure is not permitted on land that is adjacent to the Rideau Canal UNESCO World Heritage Site, or to part of a National Historic Site of Canada. (From: Capital Urban Lands Plan, National Capital Commission, December 17, 2021, page 57/124.)

Buffer zones adjacent to National Historic Sites

Debates in the Senate of Canada December 12, 2019.

Gonazles Observatory, 302 Denison Road, Victoria BC

House of Commons Ottawa May 15, 1992 MP Dennis Mills (Broadview-Greenwood) "The Department of Public Works sold the Gonzales Observatory to the City of Victoria."