"2021 Night Sky Almanac is the ideal resource for both novice and experienced sky watchers in the United States and Canada, with all of the advice, information and data that enthusiasts need to understand and enjoy the wonders of the night sky. This in-depth guide first introduces readers to the objects in the sky--from stars, to comets, to globular clusters--and then takes them through the cosmic events to look out for each month, with sky maps, moon phase charts and info about the planets. 2021 Night Sky Almanac is both a comprehensive introduction to astronomy and a quick reference book for more experienced sky watchers who don't want to miss a thing. Its compact size means it's perfect for taking on an "astro-vacation" or simply sky viewing in the backyard."-- Provided by publisher.