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25 January

DDO: Sunday Sungazing - January 2026 [Online Only]

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

DDO How to Use Your Telescope

Do you have a telescope, but don’t know how to use it? Come to the Richmond Hill David Dunlap Observatory can help! Bring your telescope to this workshop to have it assessed and to receive one-on-one instruction on its use outdoors!
3 June

[CANCELLED] Recreational Astronomy Night - June 3, 2026

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.
6 May

Recreational Astronomy Night - May 6, 2026

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.
1 April

Recreational Astronomy Night - April 1, 2026

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.
4 March

Recreational Astronomy Night - March 4, 2026

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.
4 February

Recreational Astronomy Night - February 4, 2026

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.
7 January

Recreational Astronomy Night - January 7, 2026

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.
12 December

DDO Astronomy Speaker's Night - December 2025 - Atmospheric Processes on Titan in the Context of the Dragonfly Mission

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

[AstroTours Keynote] Hot Rocks and Host Stars: Revelations of rocky exoplanets in the era of James Webb

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!