Join Now
Membership in the RASC is open to everyone who is interested in astronomy. You may join through one of 30 RASC Centres, or as an Unattached member.
Shop
Visit our store for your astronomy needs. We carry a wide variety of items such as the Observer's Handbook, calendars, astronomy teaching guides, observing aids, and more!
Donate
RASC is a national, non-profit, charitable organization devoted to the advancement of astronomy and related sciences. Help support our society through your kind donations.
Quick Navigation
Online Activities
Online astronomy activities to entertain you during isolation!
Star Parties
A list of star parties held across Canada.
Find a Centre
RASC has 30 Centres across Canada.
Society
Mission, About Us, Centres, Donations, General Assembly, Sponsors.
Publications
Observer's Handbook, Calendar, Journal, newsletters, and more.
Observing
Certificates, projects, star parties, AstroSketchers, resources.
Programs
EPO, Light Pollution Abatement, History, Special Projects, Public Lectures
Social Media
Stay in touch with RASC.
History
The RASC has a rich history going back to 1868. Explore it here in our digital archives.
Volunteer
RASC offers its members many ways to get involved.
This Day in History
| 1646 | John Flamsteed born. | 380 years ago |
| 1885 | Supernova discovered in M31 (S Andromedae). | 141 years ago |
| 1887 | Alvan Clark dies at 83. JRASC | 139 years ago |
| 1891 | Milton Humason born. | 135 years ago |