
2
August
DDO Astronomy Family Night - August 2025 - Happy Birthday, Helen Sawyer Hogg!
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!

4
August
DDO Bring Your Own Binoculars Stargazing Night - August 2025
Bring your own binoculars for a free, guided tour of the night sky.

6
August
Recreational Astronomy Night - August 6, 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.

9
August
Millennium Square Solar Observing - August 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.

16
August
DDO Astronomy Family Night - August 2025 - Seven Sisters - Observing the Pleiades
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!

25
August
City Star Party: Bayview Village Park - August 2025
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.

29
August
Millennium Square Public Star Party - August 29 or 30, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.

31
August
DDO: Sunday Sungazing - August 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!

3
September
Recreational Astronomy Night - September 3, 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.

5
September
DDO Astronomy Family Night - September 2025 - Constellations - Connecting the Dots
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!

6
September
Millennium Square Solar Observing - September 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.

13
September
DDO Astronomy Family Night - September 2025 - Who Really Discovered Neptune?
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!