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23 September

Astronomy Speaker's Night - Curiosity’s Got its Head in the Clouds: Eleven Years of Cloud Observations from Gale Crater, Mars

Come to the DDO where Conor Hayes, a PhD candidate in Physics and Astronomy at York University, is presenting about the Curiosity rover on Mars!
23 September

DDO Planetarium Day - September 2023

Enter a Digital Portable Planetarium and take a journey through the universe led by a DDO astronomer!
22 September

Millennium Square Public Stargazing 2023 - September (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, Jupiter, Saturn, and stars through our telescopes!
20 September

Speaker's Night: The Adventure of Space Science and Exploration: A Canadian Perspective (ONLINE)

Join us as John E. Moores, York Research Chair in Space Exploration, presents about Canadian Space Science and Exploration!
19 September

City Star Party - September 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.
6 September

Recreational Astronomy Night - Sep. 6, 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.
2 September

Astronomy Family Night - September 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.
2 September

Solar Observing at Ontario Science Centre - September 2023 (GO for September 2)

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