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11 June

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!
7 June

Millennium Square Stargazing (GO for Friday)

Everyone is invited to join us and Durham Skies for stargazing at the edge of Lake Ontario. Take a free look through different kinds of telescopes (including solar-filtered scopes) to get close-up looks at sunspots, craters on the Moon, and planets visible in the current night sky. Peer into deep space and try your hand at spotting faint star clusters and nebulae. You can even bring your own telescope along and we'll give you expert advice on how to use it better.
8 June

Solar Observing (GO for Saturday)

Join us at the Ontario Science Centre for our monthly Solar Observing on the TELUSCAPE observing pad. This is the area in front of the Science Centre's entrance. We use specialized telescopes that are safe to aim at the Sun. Check our home page on the Friday prior for go/no-go calls as this event is weather dependent.
6 June

Dark Sky Star Party (GO for Thursday)

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

CAO 2019 Fall Work Party

As the lazy days of summer fly past, planning is in full swing for our fall events. One of those events is the fall work party at the CAO. This year’s fall work party takes place a little earlier in the season on the weekend of September 13-15.
14 September

DDO Astronomy Night (CANCELLED)

Speaker: Paul Delaney, University Professor, Senior Lecturer, Allan I. Carswell Chair for the Public Understanding of Astronomy, York University
15 September

DDO Planetarium Days (CANCELLED)

This Fall and Winter, spend a Sunday afternoon in the OTHER dome at the DDO!
6 May

Astronomy Week Solar Observing

Join us at the Ontario Science Centre this week for solar observing on the TELUSCAPE observing pad. This is the area in front of the Science Centre's entrance. We use specialized telescopes that are safe to aim at the Sun. We will be set up from Monday to Saturday from 10:00am-12:00pm daily. Check our home page for go/no-go calls as this event is weather dependent.
11 May

Ontario Science Centre: International Astronomy Day

Celebrate International Astronomy Day at the Ontario Science Centre!
11 May

DDO: Doors Open Richmond Hill

Let’s Celebrate International Astronomy Day!