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29 August

RASC National Society: The Insider's Guide to the Galaxy FINALE

Join us online to learn basic astronomy that you can do on your own from your backyard! The spring sky hosts both very bright stars and very dim galaxies. We'll talk about the system astronomers use to measure and report the brightness of celestial objects - from luminosity to absolute and apparent brightness, to surface brightness. Please note, this will be the last episode of Insider's Guide to the Galaxy.
28 August

Stargazing Night - August 2023

Bring Your Own Binoculars and observe the sky from the David Dunlap Observatory!
27 August

DDO: Sunday Sungazing - August 2023

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

DDO Planetarium Day - August 2023

Visitors aged 6 and older will enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer.
25 August

Millennium Square Public Stargazing 2023 - August (GO for Friday)

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square. Observe the Moon, stars and Saturn at its best through our telescopes!
22 August

City Star Party - August 2023 (GO for Tuesday)

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.
20 August

Astronomy Family Night - August 2023

Join us for the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by an age-appropriate celestial activities and a demonstration of the 74” telescope.
12 August

Perseid Meteor Shower Watch 2023 (SOLD OUT)

Come watch the Perseids, one of the best meteor showers of the year, on the open field beside the Rouge Valley Conservation Centre.
6 August

Astronomy Speaker's Night - Building a Telescope the Size of the Earth

Come to the DDO where Dr. Galanis, a postdoctoral fellow at the Perimeter Institute for Theoretical Physics, is presenting about Building a Telescope the Size of the Earth!
5 August

Astronomy Family Night - August 2023

Join us for the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by an age-appropriate celestial activities and a demonstration of the 74” telescope.
5 August

Solar Observing at Ontario Science Centre - August 2023 (GO for August 5)

Enjoy safe views of the Sun every first Saturday of the month at the Ontario Science Centre!
2 August

Recreational Astronomy Night - Aug. 2, 2023

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.