Upcoming & Recent Events

12 December

DDO Astronomy Speaker's Night - December 2025 - Atmospheric Processes on Titan in the Context of the Dragonfly Mission

Experience a presentation led by astronomy experts and researchers and tour the observatory.

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.