World Wide Star Count

Thursday, October 12, 2017
Ontario Science Centre at Night

Recreational Astronomy Night

Wednesday, October 11, 2017 -
7:30pm to 9:30pm
Watch the recorded video:
Patrick Hall

Danforth/Coxwell Library: Chronicles of a Peculiar Universe: Quasar, Quasar, Burning Bright

Wednesday, October 11, 2017 -
6:30pm to 7:30pm

Quasars are the brightest objects in our Universe and are formed when matter spirals into supermassive black holes. They contain rotating disks as big as our solar system and hotter than the Sun.

A Celebration of Saturn

OSC Star Party - A Celebration of Saturn

Saturday, October 7, 2017 -
6:30pm to 9:30pm
Watch the live stream of Matt Russo's talk “Harmony of the Rings” at 8:00pm
M51: Whirlpool Galaxy (0.8m Schulman Telescope)

UofT Planetarium: A Grand Tour of the Cosmos

Friday, October 6, 2017 -
7:00pm to 10:00pm

Showtimes: 7:00pm, 8:00pm, 9:00pm

Planet Hop from TRAPPIST-1e

UofT AstroTour: The Long Path Towards Finding Habitable Exo-Worlds

Thursday, October 5, 2017 -
8:00pm to 10:00pm

Although we are still decades away from discovering life on worlds outside of our own solar system, much progress is being made today to identify the best potential candidates for hosting such life.


Westdale Library: The Past, Present and Future of Planet 9

Thursday, October 5, 2017 -
7:00pm to 8:00pm

Pluto has always been the favourite of many who have cast their thoughts out to the stars and planets.

St. James Town Library: Earth's Battered Moon

Thursday, October 5, 2017 -
7:00pm to 8:00pm

Just like the Earth, the Moon is about 4.5 billion years old. It has been and continues to be constantly bombarded by meteorites. Some suggest that this rate of bombardment has remained constant in the past couple of billion years.

The Universe's Baby Picture

Ismaili Centre: The Universe’s Baby Picture: An Evening with Professor David Spergel

Thursday, October 5, 2017 -
7:00pm to 8:30pm

Observations of the microwave background, the left-over heat from the big bang, are snapshots of the universe only three hundred thousand years after the big bang.

Perimeter Institute: A new view on gravity and the dark side of the cosmos

Perimeter Institute: A new view on gravity and the dark side of the cosmos: Erik Verlinde Public Lecture (WEBCAST)

Wednesday, October 4, 2017 -
7:00pm to 8:30pm

Are we standing on the brink of a new scientific revolution that will radically change our views on space, time, and gravity?

John Percy

Pape/Danforth Library: Archaeoastronomy: The Astronomy of Civilizations Past

Wednesday, October 4, 2017 -
6:30pm to 8:00pm

Join us as Dr. John Percy discusses how and why astronomy was important to early civilizations ranging from the seagoing Polynesians, to the builders of Stonehenge and the Great Pyramids, to our own First Nations.

Millennium Square Stargazing Night (GO for Saturday)

Saturday, September 30, 2017 -
6:00pm to 11:00pm

Everyone is invited to join us and Durham Skies on September 30 for stargazing at the edge of Lake Ontario.

RASC Toronto Centre Logo

Fiscal Year End

Saturday, September 30, 2017

Fiscal year end of the RASC Toronto Centre.

UofT Planetarium: Voyager’s Odyssey: A Small Probe’s Adventures into Interstellar Space

Friday, September 29, 2017 -
7:00pm to 10:00pm

Showtimes: 7:00pm, 8:00pm, and 9:00pm


Turner Park Library: The Past, Present and Future of Planet 9

Thursday, September 28, 2017 -
7:00pm to 8:00pm

Pluto has always been the favourite of many who have cast their thoughts out to the stars and planets.

Jill Tarter

OSC Great Conversations: A Cosmic Perspective: Searching for Aliens, Finding Ourselves

Wednesday, September 27, 2017 -
7:30pm to 9:00pm

Speaker: Dr. Jill Tarter, Bernard Oliver Chair, SETI Institute

Gaia Satellite

ASX Star Talk: The Gaia Satellite: Mapping the Milky Way in 3D

Wednesday, September 27, 2017 -
7:00pm to 9:00pm
Speaker: Professor Jo Bovy, Assistant Professor and Canada Research Chair in Galactic Astrophysics in the Astronomy & Astrophysics Department of the University of Toronto

RASC Mississauga: Astronomy Evening at Riverwood

Tuesday, September 26, 2017 -
7:30pm to 9:00pm
Explore the universe with members of the Royal Astronomical Society of Canada. Telescopes will be set up to give you amazing views of our Moon, the planets and more!

Fort York Library: Introduction to Astronomy

Tuesday, September 26, 2017 -
6:30pm to 8:00pm

Join Ian Wheelband of the Royal Astronomical Society of Canada for a talk on Astronomy. If the weather permits, there will be an opportunity to look through a telescope and view the evening sky.

Observing from the city

City Star Party (GO for Monday)

Monday, September 25, 2017 -
7:30pm to 10:00pm

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.

Artist's concept of a near-Earth object

Solar System Social #6

Saturday, September 23, 2017 -
6:00pm to 8:00pm
Solar System Social (@SolarSystemTO) is a space-themed speaker series that brings exciting ideas and research from the field of planetary science to the general public in the form of short, informative, and interesting talks that last about 20 minutes each.
Catherine Woodford

RASC Mississauga: The Discovery of Gravitational Waves

Friday, September 22, 2017 - 8:00pm

Get an up-close and personal take on the Gravitational Waves discovery that has changed science for the better.


Autumnal Equinox

Friday, September 22, 2017

The earth's axis is perpendicular to its orbit with the North pole tipping away form the sun. In other words, the season is changing to Fall.

Hamilton Amateur Astronomers: 2 minutes and 18 seconds in the Shadow of the Moon

Thursday, September 21, 2017 -
7:00pm to 8:00pm
Imagine the air cools, the sky darkens, the birds stop singing and the stars come out at noon. For a lucky few who have been in the path of a total solar eclipse their imagination becomes reality as they experience one of nature’s most spectacular events.
Star Trails by Steve McKinney

Dark Sky Star Party (GO for Wednesday)

Wednesday, September 20, 2017 -
7:30pm to 11:30pm

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.

Eatonville Library: After School Club SPECIAL: Celestial Storms

Wednesday, September 20, 2017 -
4:00pm to 5:00pm

Ontario Science Centre's Dr. Rachel Ward-Maxwell presents an interactive talk for Science Literacy Week!

Annette Street Library: Science Literacy Week: Astronomy Talk for Kids

Wednesday, September 20, 2017 -
1:30pm to 2:30pm
Rachel Ward-Maxwell, Researcher-Programmer in Astronomy and Space Sciences from Ontario Science Centre, presents "Celestial Storms."
New Moon

New Moon - 1:30am EDT

Wednesday, September 20, 2017

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

Northern District Library: Science At The South Pole

Tuesday, September 19, 2017 -
7:00pm to 8:00pm

Imagine viewing the leftover light from the Big Bang while stationed at the Amundsen-Scott South Pole Station in Antarctica. Professor Keith Vanderlinde from the University of Toronto has done just that.

Diana Valencia

Runnymede Library: From Earth to Super-Earths and Beyond

Tuesday, September 19, 2017 -
7:00pm to 8:00pm

It has been a little over 20 years that we know there are planets around other stars and 10 years that we know there are solid planets around other stars with the first super-Earth discovered: GJ876d.