Stars vary in brightness due to a number of different astrophysical processes. We'll cover the main types, share some examples to monitor in the summertime - with unaided eyes, binoculars, and any size of telescope.

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

Watch the recorded video: https://youtu.be/MkQ7D85lUkE

Hover above the Moon like an astronaut and get eye-to-eye with the planets. Find colourful stars, star clusters, bright nebulae and even another galaxy. 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. If you are thinking of buying a telescope, viewing with other people's equipment is the best way to make a good choice. If you have a telescope or binoculars, please bring it!

Join the Royal Astronomical Society of Canada for this four-night course, where you will be introduced to observing the night sky. After the course, you will be able to identify the brighter stars and constellations and have a basic understanding of the motion of the night sky. You'll have a chance to use binoculars and telescopes to observe the Moon, the Sun, planets, and whatever else you might find the the deep skies. Course Topics September 8 | Introduction to the Night Sky

Watch the recorded video: https://youtu.be/FaZlOg-lfYg

Explore the universe with members of the Royal Astronomical Society of Canada. Telescopes will be set up to provide stellar views of the Moon, the planets and more. Astronomy Nights fill up fast, be sure to register to save your place for space! Important Information

The best kind of trivia is astronomy trivia!

Join us and our sponsor, Durham Skies, for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square. Observe the Moon, Jupiter, Saturn, even Neptune and stars through our telescopes! Check out astronomy literature at our information booth, and ask us questions to learn more about the stars and planets. You can bring your own telescope and we'd be happy to help you set it up and aim it at the Moon.

Join us for the AstroTours Keynote on September 1st! Mubdi Rahman, the Founder and Principal of Sidrat Research, will talk about Classical Islamic Astronomy.

The first images from the James Webb Space Telescope (JWST) have been released, and we’ve never been more curious about the celestial. Join us in the Hot Zone at 2:00pm on Sunday, August 28, for a presentation by Nathalie Ouellette—astrophysicist, science communicator and Canada’s JWST Outreach Scientist. Learn all about the JWST, including Canada’s involvement in its mission, why it’s important and what it has helped researchers learn about the universe so far. Plus, ask Nathalie your most pressing questions about the JWST and our universe!

The North York Astronomical Association invites you to attend its annual star party. Starfest 2022 presents “Deep Sky Treasures” on August 25-28, 2022.