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6 September

International Observe the Moon Night

See: http://observethemoonnight.org/
2 September

City Star Party

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!
29 August

DDO Family Night

Family Nights are a great introduction to the night sky for our younger guests. Look through telescopes, make some space crafts, visit the Skylab and find out what's really up there!  Family Nights require tickets to be purchased in advance. This program runs regardless of sky or weather conditions. If skies are clear you can check out the night sky through a variety of telescopes including the biggest optical telescope in Canada! The evening also includes a presentation in our new Skylab that offers great (virtual) night sky viewing.
29 August

Neptune at opposition

Neptune is closest to earth for the year, giving the best views in a telescope.
25 August

Dark Sky Star Party

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 pollution, 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.
25 August

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.
23 August

DDO Star Talk: Chris Vaughan

Speaker: Chris Vaughan, Chief Geophysicist, CGI Controlled Geophysics Inc. 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 new Skylab. Star Talk nights run regardless of weather conditions. 
21 August

Starfest

See: www.nyaa.ca/starfest.htm
21 August

Saskatchewan Summer Star Party

See: www.usask.ca/rasc/starparty.html
18 August

Conjunction of Venus and Jupiter

Venus and Jupiter are close to one another. Easily viewable without a telescop from the city.
17 August

Castlefield Observatory Walk

This is the story of one of Toronto's historic observatories, built on a height of land between the Don and Black Creek watersheds, and the story of the man who built it. Join Helen Mills and Lynn Kirk for an exploration of the Beltline Trail and the topography of this industrial and post industrial neighbourhood. Lynn will tell the remarkable story of Bert Topham (1893-1962), an ordinary working man and WWI veteran who got interested in the stars while in the trenches. Bert taught himself astronomy and built an observatory on a hill north west of Dufferin and Castlefield.
16 August

DDO Star Talk: A Convergence of Science and Art

Rachel Ward-Maxwell. Dept of Physics and Astronomy, McMaster University. Title: "A Star is Born: A Convergence of Science and Art" A picture is worth a thousand words and no one knows that better than astronomers. Learn how powerful supercomputers are used to visualize both simulated and observed astronomical data in unique and beautiful ways. Star Talk nights offer great talks by great speakers on astronomy, space science and sometimes, science fiction.