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!

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

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.

The cold crisp nights of winter contain many wonderful and bright winter constellations and deep sky objects, but they can come with numb fingers and cold toes, treacherous driving conditions, and equipment challenges.

Check out the October AstroTour Keynote! This AstroTour features Dr Hannah Diamond-Lowe, and her work on exoplanets orbiting M dwarf stars, followed by exciting astronomy demos and telescope tours!

Ajax's biggest family event of the year comes up on October 18. The Toronto Centre's Durham Region team will be in attendance with tables of crafts for little ghosts and goblins, an information booth, and a number of solar telescopes for safe viewing of the Sun's active sunspots!

Join us as Prof. Patrick Hall explores Quasars.

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

Join us for International Observe the Moon Night to learn about lunar science and exploration, take part in celestial observations, and honor cultural and personal connections to the Moon.

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!

Join us for our monthly recreational astronomy night meeting. This is where our members get to show their latest projects or give tutorials and tips on just about everything to do with astronomy.

Our monthly City Star Party is the place to catch universe from within the city limits at Bayview Village Park. If you don't have a telescope then you will find many astronomers who would love to share a view.