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Upcoming & Recent Events

21 May

RASCTO Speaker's Night: The James Webb Space Telescope: a cosmic story for the ages [Online Only]

Join us as Ethan R. Siegel, Ph.D., explores the James Webb Space Telescope.
25 May

DDO: Sunday Sungazing - April 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!
30 May

Millennium Square Public Star Party - May 30 or 31, 2025

Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.

FEATURED NEWS

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!

We have found a new home! - York University

We have a new meeting location at York University!
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.