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Upcoming & Recent Events

7 June

Solar Observing at Millennium Square - June 2025

Come join us along the Lake Ontario shoreline to safely observe exciting sunspot activity and solar prominences through our solar telescopes! The Sun has been very active lately, producing auroras over Canada and around the world.
7 June

DDO Astronomy Speaker's Night - Seeing Double (Stars) - June 2025

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

DDO Astronomy Family Night - June 2025 - Constellations: Connecting the Dots

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 Work Party Report for 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.

Information for the 2024 Annual Meeting

This page contains information regarding the upcoming member's only Annual Meeting of the RASC Toronto Centre.

Welcoming a far away friend! Comet C/2023 A3 (Tsuchinshan–ATLAS)

Comet C/2023 A3 (Tsuchinshan–ATLAS) is visible now!
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.