2021 Guide to the Night Sky: A month-by-month guide to exploring the skies above North America

This is the ideal resource for beginners and experienced stargazers in the United States and Canada, and has been updated to include new and practical information covering events occurring in North America''s night sky throughout 2021.This practical guide is both an easy introduction to astronomy and a useful reference for seasoned stargazers. Now includes a section on comets and a map of the moon...