Upcoming & Recent Events

30 November

DDO: Sunday Sungazing - November 2025

Safely observe the sun with us! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!
3 December

Recreational Astronomy Night - December 3, 2025 [Online Only]

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.
6 December

DDO Astronomy Family Night - December 2025 - The Blue Marble

Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

FEATURED NEWS

CAO Fall Work Party Report for October 2025

28 October 2025

On the weekend of October 3-5, about 18 Toronto Centre members and U of T students participated in the annual Fall work weekend at the CAO where preparing the site for the coming winter season was front and centre on the agenda.

CAO Mini Work party Report for July 2025

21 July 2025

On Saturday July 12, 20925, several RASC Toronto Centre volunteers attended our observatory property at the CAO to affect some needed maintenance.

CAO Work Party Report for May 2025

26 May 2025

On the weekend of May 2-5, 2025, about 24 Toronto Centre member volunteers participated in the annual Spring Work Party at our E.C. Carr Astronomical Observatory (CAO) on Blue Mountain.

About us

Welcome to the Toronto Centre of the Royal Astronomical Society of Canada. We’re Canada’s largest astronomy club with more than 600 members in the GTA who share a love of astronomy and the wonders of the night sky

Learn More

The Sky Tonight

Toronto

 Astronomical forecasts for different locations in the GTA and a monthly, free star map.