RegisterLoginSunday, November 29, 2015

Thanks for a great season!

 Our 2015 public season wrapped up on October 31. Thank you for being a part of the Observatory's 80th anniversary year.

Throughout the winter months we continue to offer regular school trips, Guide and Scout programs and special events. Please join us for our 2016 public season. Tickets will be available in mid-April.



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.



Visiting the Observatory?

Please keep in mind that Google Maps has been sending visitors to the wrong place. We're located at 123 Hillsview Drive in Richmond Hill. David Dunlap Observatory Park does NOT connect to the Observatory.


Happy 80th Birthday, David Dunlap Observatory!

Home to the largest optical telescope in Canada, the David Dunlap Observatory represents a unique place in Canadian scientific history.

Since 2009, the DDO has been operated by the Royal Astronomical Society of Canada, Toronto Centre as an education and public outreach facility. A long-time registered charity, the Toronto Centre of RASC has now been been given the observatory and adjacent administration building. We're grateful for the honour and will continue to honour the spirit of the Dunlap family's legacy.

The University of Toronto has in recent years returned historic books, furniture and many artifacts to RASC’s care, making a visit to the Observatory a unique experience.

When we celebrated the DDO's 80th anniversary on June 13 and 14 there were even more extraordinary moments.


Three generations of the Dunlap Family and a letter from the Prime Minister, presented by federal MP Costas Menegakis

Historic artifact exhibit curator and talented musician Randall Rosenfeld 

Past Observatory Directors and University of Toronto faculty and staff joined us to celebrate 80 years of stargazing. We also welcomed hundreds of Richmond Hill residents to an Open House.

The David Dunlap Observatory is located at 123 Hillsview Drive, off Bayview Avenue north of 16th Avenue in 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.  Go to our "Schedule & Tickets" PAGE to purchase tickets for our programs.

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