The first three editions of NightWatch sold more than 600,000 copies, making it the top-selling stargazing guide in the world for the last 20 years. The key feature of this classic title is the section of star charts that are cherished by backyard astronomers everywhere. Each new edition has outsold the previous one because of thorough revisions and additional new material. NightWatch has been acclaimed as the best general interest introduction to astronomy. The fourth edition has improvements over the 3rd edition in every chapter, including: The famous charts, ideal for stargazers using a small telescope or binoculars; A complete update of the equipment section, including computerized telescopes; An enlarged photography section, including how-to instructions for using the new generation of digital cameras for astronomical photography, both with and without a telescope; The tables of future solar and lunar eclipses, planetary conjunctions and planet locations, updated through 2025. This edition includes star charts for use in both the northern and southern hemispheres. There are also dozens of new photographs throughout the book that show the latest thrilling discoveries made by current space observatories and probes.