2021 Observer's Handbook

Pre-order now! Available to ship early November. Published annually for over 100 years by the Royal Astronomical Society of Canada, the Observer's Handbook has become the must-have reference book for people interested in astronomy and the standard North American reference for data on the sky.

Whether you are a professional or amateur astronomer, educator, camper, science writer, Scout and Guide leader, or just interested in astronomy, this annual must-have book is designed for you. The over 350-page guide includes comprehensive information about upcoming astronomical events and references.