Free,self-guided tours of the DDO resume 1-5 PM on May 31st, the 90th anniversary of the RHDDO!

We are piloting a new City Star Party at Long Branch Park to catch universe from within the city limits. If you don't have a telescope then you will find many astronomers who would love to share a view.

Join us as Ethan R. Siegel, Ph.D., explores the James Webb Space Telescope.

Join us for a world-wide live stream of events from here and from around the world hosted from the David Dunlap Observatory!

Safely observe the sun with us! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

Experience a presentation led by astronomy experts and researchers and tour the observatory.

Safely observe the sun with us! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

Experience a presentation led by astronomy experts and researchers and tour the observatory.

Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!