The Observer’s Handbook contains a number of recommended links to additional astronomy resources. This page includes live hyperlinks that will allow you to access these resources more easily. Happy exploring!

• Access the websites listed in Selected Internet Resources on page 15 of the 2026 Observer’s Handbook.
• Access all the websites listed in the 2026 Observer’s Handbook, listed by page.

Handbook Updates

Every effort is made to ensure that the RASC Observers's Handbook is as accurate and comprehensive as possible. Occasionally, errors or omissions can occur and readers will find updated information on these pages.

If you have identified an error and want to let us know, then please forward a message to the Handbook Editor.

For 2026, the following individuals have donated their time and expertise to contribute sections or material:

James S. Edgar, Editor, Melville, Saskatchewan

David M.F. Chapman, Creative Consultant, Halifax, Nova Scotia

Michael Gatto, Graphics Consultant, Avonport, Nova Scotia

by Nicole Mortillaro, Editor-in-Chief, the Journal

Nicole Mortillaro, Editor-in-Chief

119th year of publication

• Mr. Bruce A. Aikenhead*
• Mr. Terence Dickinson*
• Dr. Alice Vibert Douglas*
• Dr. Helen Sawyer Hogg*
• Dr. Heinz Lehmann*
• Dr. Paul Marmet*
• Dr. Jaymie Matthews
• Dr. P.J.E. Peebles
• Dr. Sara Seager
• Dr. Gordon Shrum*
• Dr. William Thomas Tutte*

 The RASC Legacy Fund was established for the promotion and advancement of Society objectives. Use of this fund is governed by these guidelines: