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28 June

Millennium Square Public Star Party - Summer Solstice 2025 (GO for Saturday)

Join us on the evening of the Summer Solstice for free public stargazing along the north shore of Lake Ontario, at Millennium Square in Pickering.
29 June

DDO: Sunday Sungazing - June 2025

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

City Star Party - July 2025 - Location change to York University Open Air Astro Fair (GO for June 29)

LOCATION CHANGE: Our monthly City Star Party for July has been moved to York University Open Air Astro Fair instead of Bayview Village park. If you don't have a telescope then you will find many astronomers who would love to share a view.
2 July

Recreational Astronomy Night - July 2, 2025

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 July

Millennium Square Public Star Party - July 4 or 5, 2025

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

DDO Bring Your Own Binoculars Stargazing Night - July 2025

Bring your own binoculars for a free, guided tour of the night sky.
12 July

Millennium Square Solar Observing - July 2025

Come join us along the Lake Ontario shoreline to safely observe exciting sunspot activity and solar prominences through our solar telescopes! The Sun has been very active lately, producing auroras over Canada and around the world.
12 July

DDO Astronomy Family Night - July 2025 - Comet Collision Course - When Shoemaker-Levy 9 Hit Jupiter

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!
26 July

2025 Toronto Centre Observatory Open House and Awards Picnic

Members and their families are cordially invited to attend the 26th Annual E.C. Carr Astronomical Observatory (CAO) Open House and RASC Toronto Centre Awards Picnic.
26 July

DDO Astronomy Family Night - July 2025 - Perseids - Warm Nights, Shooting Stars

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!
27 July

DDO: Sunday Sungazing - July 2025

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

Millennium Square Public Star Party - August 1 or 2, 2025

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