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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. 
12 September

Solar Observing (NO GO)

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.
11 September

DDO Family Night (SOLD OUT)

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 special Skylab that offers great (virtual) night sky viewing.
11 September

Annual Algonquin Adventure

The Annual Algonquin Adventure (AAA) is an informal get-together of Toronto Centre and North Bay Astronomy Club members at the Mew Lake campground in Algonquin Park. This annual event takes place on the September New Moon weekend and features public observing on the Friday and Saturday nights. Reservations are highly recommended as the Park fills for this event but space is usually available at the Lake of Two Rivers camp site that is a short walk or drive away.
9 September

Recreational Astronomy Night

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. Talks start at 7:30 socializing starts at 7:00.
4 September

DDO Family Night (SOLD OUT)

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 special Skylab that offers great (virtual) night sky viewing.
3 September

UofT AstroTour: Placing the Planets

Speaker: Christa Van Laerhoven The planets didn’t start off where they are now. We know this from looking at the small things: the asteroids, comets, and Kuiper Belt objects. The movements of the planets leaves its fingerprint on how these small bodies are distributed. Indeed, the small bodies are a better tracer of planet migration than the planets are. This talk will include an overview of the formation and migration of planets in the solar system, including the “Grand Tack” and “Nice Model.” It will also touch on how the planets might move in the future.
3 September

Globe at Night

Measuring light pollution of your sky, see www.globeatnight.org
1 September

Neptune at opposition

Neptune is best positioned for observing.
31 August

Riverwood Conservancy: Our Night Sky (SOLD OUT)

The Riverwood Conservancy and the City of Mississauga are pleased to present “Our Night Sky”, a new show for young audiences of all ages, created and performed by the Chamber Music Society of Mississauga (CMSM). This free admission, Preview Performance, is scheduled for Monday, August 31, rain or shine, beginning at 8 pm in the Riverwood Barn. Bring your own lawn chairs.
29 August

DDO Star Talk and Stargazing (SOLD OUT)

The Story of Space TelescopesDr. Pauline Barmby, Western University Nearly everyone has heard of the Hubble space Telescope, but it's not alone in space. Why do we need so many space telescopes, and how do they get built and operated? What have we learned from these overhead observatories?Star Talk nights offer great talks by great speakers on astronomy, space science and sometimes, science fiction.