RASC Toronto | Astronomy and space events, observing the night sky from Toronto, GTA and Southern Ontario

24 October

RASC Toronto Centre Fall Winter Star Party at CAO 2025

The cold crisp nights of winter contain many wonderful and bright winter constellations and deep sky objects, but they can come with numb fingers and cold toes, treacherous driving conditions, and equipment challenges.

4 October

International Observe the Moon Night 2025 (GO for Saturday)

Join us for International Observe the Moon Night to learn about lunar science and exploration, take part in celestial observations, and honor cultural and personal connections to the Moon.

20 September

City Star Party: (We are GO for Sept. 20, 2025) Long Branch Park: Fall Equinox

We are piloting a new City Star Party at Long Branch Park to catch universe from within the city limits. If you don't have a telescope then you will find many astronomers who would love to share a view.

MeMStar Enabled Telescopes

Private

Public

What is MeMstar?

MeMstar consists of a housing (less than 100g) that attaches to the bottom of a telescope tube, or any part attached to the tube.

Read more about MeMStar Enabled Telescopes

CAO Equipment for Members

Private

Public

Members and guests visiting the Carr Observatory can take advantage of our extensive inventory of quality astronomical equipment - available on a first-come, first-served basis.

Read more about CAO Equipment for Members

17 September

RASCTO Speaker's Night: Supernova Forensic Files [Online Only]

Join us with Dr. Jennifer Andrews, Associate Astronomer at NOIRLab/Gemini-N, as we explore massive stars, stars at least 8-10 times larger than our Sun, end their lives in some of the brightest explosions in the Universe.

28 August

2025 Annual Algonquin Adventure stargazing night with Royal Astronomical of Society of Canada

Join members of the Royal Astronomical Society of Canada (Toronto Centre) on Aug 28, 29 and 30, beginning at 8:00pm for a night of stargazing, on the Mew Lake beach.

9 August

DDO Ask an Astronomer - August 2025

Ask a DDO Astronomer your astronomy questions!

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.

20 July

City Star Party: Long Branch Park - Peak Summer Stars (GO for Sunday)