Product Description: Gerald North's complete practical guide and resource package instructs amateur astronomers in observing and monitoring variable stars and other objects of variable brightness. Descriptions of the objects are accompanied by explanations of the background astrophysics, providing readers with real insight into what they are observing at the telescope...read more

Product Description: Astronomy in Depth fills the need for a textbook that covers pre-university level Astronomy courses (in the UK, the GCSE syllabuses) and provides numerical examples to help students. It is also written as a serious foundation in Astronomy for amateurs who want to take a more detailed approach than can be found in the bulk of introductory astronomy books...read more (view table of contents, read Amazon.com's description)

Product Description: Since comet Shoemaker-Levy collided with the planet Jupiter with stupendous force in 1994 there has been an upsurge of amateur interest in comets. Most comets are first discovered by amateur astronomers because there are so many amateurs looking for them, and techniques and instruments have improved dramatically in the past few years...read more (view table of contents, read Amazon.com's description)

Product Description: Written by an accomplished amateur astronomer and available for the first time in North America, this advanced guide is designed to take your evening explorations to new heights. Beginning with an explanation of the fundamental principles of practical astronomy, author North provides essential information on telescope optics, the atmosphere, astrophotography, electronic imaging, and telescope hardware (including how to select equipment and diagnose faulty telescopes)...read more (view table of contents, read Amazon.com's description)

Product Description: Going beyond the superficial treatments found in "coffee-table" astronomy books, this book provides comprehensive treatment of astronomy in depth, offering comprehensible explanations of how and why things are as they are. Comprehensive in its coverage, the book includes self-study questions at the end: of each chapter...read more (view table of contents, read Amazon.com's description)