Upcoming & Recent Events

5 November

Recreational Astronomy Night - November 5, 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.
19 November

RASCTO Speaker's Night: Structure, Composition, and Internal Dynamics of Rocky Planets [Online Only]

Join us as Prof. Charles-Édouard Boukaré explores the Structure, Composition, and Internal Dynamics of Rocky Planets
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!

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

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The Sky Tonight

Toronto

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