David Dunlap Observatory
An astronomical observatory in Richmond Hill, Ontario, established in 1935, housing what was once the world's second-largest telescope and Canada's largest. It's a National Historic Site known for astronomical discoveries and public programs.

šŸ“œ Historic astronomical observatory in Richmond Hill, Ontario.
šŸ” Home to Canada's largest telescope, once the world's second largest.

Why Go

šŸ”­ View the night sky through a 74-inch telescope
šŸŽ“ Participate in educational astronomy programs and events
ā­ Explore a National Historic Site of Canada
šŸ›ļø Admire beautiful architecture of the observatory and administration buildings

Why Avoid

šŸŒ³ Observatory obscured by trees on all sides
šŸ’” Optical astronomy ability reduced due to urban light pollution

Tips

šŸ§­ Entrance on the north side of the park

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