RegisterLoginSunday, March 29, 2015

All's well!

With the land-clearing currently underway on the end end of the DDO property, a number of our neighbours have been asking us about the Observatory. While development is slated for the land near Bayview Avenue, the Dunlap Observatory is doing just fine.  The owners of the property, Corsica Development, have donated about 100 acres of parkland to the Town of Richmond Hill, including the beautiful treed area around the Observatory precinct. We're looking forward to opening in May for the David Dunlap Observatory's 80th anniversary year. We hope you'll join us!


Want to know what's up in the sky this week? Check out SkyLights

Scout or Guide group?  We offer year round programs for Scout and Guide groups to help earn your Astronomy Badge.  Contact us at  for more information.

We welcome school groups and special events year-round. Our programs meet Ontario curriculum requirements and they're fun!  Contact us at  for more information.

   Be a friend of the DDO on Facebook!

You'll find out what's new in space, sci-fi and right here at the DDO. Get regular updates on DDO happenings by clicking here.



Our 2015 season starts in May. Stand by... We'll be posting our event schedule in April. 

Ready to explore the universe? Start your journey at the David Dunlap Observatory, home of Canada's largest optical telescope with a mirror measuring more than six feet (74") in diameter. Constructed in the 1930s,  the Observatory is located in the heart of Richmond Hill, Ontario. 

Throughout our regular season, join us for an evening of telescope observing, space crafts, space talks and tours. On program nights we check out a wide variety of celestial objects, including the Moon, Jupiter, Mars, Saturn and more.


The David Dunlap Observatory is home to a wide range of public viewing nights, special events and educational programs. Visiting the 23-ton Great Telescope is an awe-inspiring experience. 

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