RASC Toronto Centre

RASC Toronto Centre We are the Toronto Centre of the Royal Astronomical Society of Canada. Many of our events are open to the general public.

We love astronomy and have been sharing the wonders of the night sky with the public for over 140 years. We host a number of monthly events where members and non-members alike can come out and do astronomy. From our monthly professional and amateur talks at the Ontario Science Centre, to our Dark Sky Star Parties or our City Star Parties, come out and take a look through a telescope, and meet people who love space.

for this week, with worldwide content. Clear skies! (image by Sailu Nemana)
10/11/2026

for this week, with worldwide content. Clear skies! (image by Sailu Nemana)

This long exposure image of the North American Nebula was captured in 2018 near Thornbury, Ontario by my friend Sailu Nemana. Several of the surrounding bright stars and star clusters within it are highlighted. The smaller Pelican Nebula (at right) is formed by the strip of dark dust named LDN 935.....

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!
10/10/2026

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!

As shown above, on Saturday, October 17, 2026 from 6:40 am to 6:46 am EDT, the International Space Station will be visible flying high overhead of Southern Ontario in an extremely bright pass, exiting Earth’s shadow low in the west-southwest and then flying closely past the bright star Capella and...

for this week, with worldwide content. Clear skies! (image by Bob Franke / NASA)
10/04/2026

for this week, with worldwide content. Clear skies! (image by Bob Franke / NASA)

The Beehive Cluster also known as Messier 44 and Praesepe “the Manger” is a large and bright open star cluster in central Cancer that spans 1.5 degrees of the autumn predawn and springtime evening sky. This image highlights the handful of yellowish cooler stars interspersed with the cluster’s ...

for this week, with worldwide content. Clear skies! (image by Claudio Oriani)
09/27/2026

for this week, with worldwide content. Clear skies! (image by Claudio Oriani)

This spectacular image of Saturn was captured by my friend Claudio Oriani of Richmond Hill on September 12, 2026. The dark ring of the Cassini Division divides the main rings. More of Claudio’s wonderful work can be enjoyed at his website https://www.wondersofthesky.com/

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!
09/26/2026

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!

As shown above, on Monday, September 28, 2026 from 8:02 pm to 8:08 pm EDT, the International Space Station will be visible flying over Southern Ontario in a bright pass, rising from the west-northwestern horizon and then flying closely past the bright star Arcturus and then above Sagittarius’ Teap...

for this week, with worldwide content. Clear skies! (image by NASA)
09/21/2026

for this week, with worldwide content. Clear skies! (image by NASA)

The Reiner Gamma Swirl is a light patch on the moon’s Oceanus Procellarum near the crater Reiner. Use the prominent Kepler (top right) to guide you.

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!
09/18/2026

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!

As shown above, on Sunday, September 26, 2026 from 7:59 pm to 8:04 pm EDT, the International Space Station will be visible flying overhead of southern Ontario in an extremely bright pass, rising from the west-northwestern horizon and then flying past the Big Dipper’s handle star Alkaid and then th...

for this week, with worldwide content. Clear skies! (image by Steve McKinney)
09/13/2026

for this week, with worldwide content. Clear skies! (image by Steve McKinney)

The Dumbbell Nebula is a large planetary nebula in Vulpecula (the Fox). It’s visible without showing colour in a backyard telescope. Planetary nebulae are the corpses of stars with mass similar to our sun. This one resembles an apple core! This image by Steve McKinney covers a patch of sky about a...

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!
09/12/2026

Here are this week's best International Space Station flyovers for Toronto and the GTA. Just look up and see it moving!

As shown above, on Sunday, September 13, 2026 from 8:35 pm to 8:42 pm EDT, the International Space Station will be visible flying over southern Ontario in a very bright pass, rising from the western horizon near Arcturus and then flying through the Big Dipper’s handle before disappearing into Eart...

for this week, with worldwide content. Clear skies! (image by Steve McKinney)
09/06/2026

for this week, with worldwide content. Clear skies! (image by Steve McKinney)

This long-exposure image of the Triangulum Galaxy, also known as Messier 33 and NGC 598, was captured by Steve McKinney of Toronto in 2012. The large, but relatively faint spiral galaxy, which is climbing the eastern sky on September evenings, spans 71 x 42 arc-minutes, or about 2.5 x 1.3 full moon....

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