Skip to main content
21 September

City Star Party (GO for Tuesday)

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!
19 September

Solar Observing (NO GO)

Join us at the Ontario Science Centre if skies are clear this coming Saturday morning.
19 September

International Observe the Moon Night

See http://en.wikipedia.org/wiki/Astronomy_Day
18 September

Hamilton Amateur Astronomers: The Astronomical Experience

From the earliest days of the first hominids and through the epochs into the 21st century, mankind has held a deep fascination with the night sky. In today’s technological society, massive mountaintop observatories and high-tech space telescopes are at the forefront of astronomical research, but an ever-growing group of individuals continue to peer up from dark fields, secluded parks and their own backyards in the quest to explore and understand the universe.
18 September

UofT Planetarium: Imagining the Size of the Universe

Showtimes: 7:00pm, 8:00pm, and 9:00pm How big is the universe? How can we seek to answer this question or understand the answer once we have it? Our universe is much bigger than we imagine it to be but, using analogies and visualizations, we can start to grasp its true dimensions. This planetarium show will journey through the different scales of the universe, starting with familiar objects like the moon and the Earth, and ending with the furthest reaches of the observable universe.
18 September

Public Star Night at Millennium Square, Pickering (NO GO)

Join us and Durham Skies this September for free stargazing down by the edge of Lake Ontario. Before sunset, come and have a safe look at our nearest star through special solar-filtered telescopes, and then as the sky gets darker, get close-up looks at craters on the Moon and the captivating rings of Saturn.
17 September

Riverwood Conservancy: An Introduction to Observational Astronomy

What star is that? How can I spot Orion’s Belt? How many planets can I see without a telescope? Learn your way around the night sky. The Riverwood Conservancy, The Earthshine Astronomy and Space Science Organization and the Mississauga Centre of the Royal Astronomical Society of Canada are teaming up to offer a 4-week course on astronomy. Upon completion the student will be able to identify the brighter stars and constellations.
15 September

UofT Mississauga Snider Lecture: Canadian Spacewalkers

There are astronauts and then there are space walkers. Only three Canadians have donned space suits and stepped into the void 400 km above the Earth to perform zero-G construction work on the International Space Station.
14 September

Dark Skies Observing

See the milky way and galaxies with the unaided eye. Point your telescope to find the many dim deep space objects that sprinkle the sky. Away from Toronto's light polution, there is so much to see. We observe from the Long Sault Conservation area, an hour outside of Toronto. We meet around dusk once a month in the parking lot for views only seen in dark sky conditions. We hold this event on the first clear night of our week-long window, so the date and time are determined closer to.
13 September

Partial solar eclipse

The moon moves in front of the sun, blocking some of its light.
13 September

New Moon

The moon is between us and the sun. Without the moon in the sky at night, deep sky objects are easier to observe.
12 September

DDO Star Talk and Stargazing (SOLD OUT)

Paul Delaney, York University Star Talk nights offer great talks by great speakers on astronomy, space science and sometimes, science fiction. You'll also have a chance to tour the Observatory and (weather permitting) check out the night sky through a variety of telescopes set up on the lawn and through the big scope in the Main Dome. If the weather gods are angry, you can check out the (virtual) night sky in our special Skylab. Star Talk nights run regardless of weather conditions.