Calling Volunteers! The Spring 2026 work party at the E.C. Carr Astronomical Observatory on Blue Mountain will be held on the weekend of May 01-03.

Families will see 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.

Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities.

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.

Spoiler Alert! It's not Aliens!

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

Join us at the lake This is your chance to learn about moon features, hone observing skills and maybe even earn a RASC Explore the Moon - Binocular or RASC Explore the Moon - Telescope certificate!

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 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.

Families will see a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities.

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.