Now in its fourth edition, this highly regarded book is ideal for those who wish to solve a variety of practical and recreational problems in astronomy using a scientific calculator or spreadsheet. Updated and extended, this new edition shows you how to use spreadsheets to predict, with greater accuracy, solar and lunar eclipses, the positions of the planets, and the times of sunrise and sunset. Suitable for worldwide use, this handbook covers orbits, transformations and general celestial phenomena, and is essential for anyone wanting to make astronomical calculations for themselves. With clear, easy-to-follow instructions for use with a pocket calculator, shown alongside worked examples, it can be enjoyed by anyone interested in astronomy, and will be a useful tool for software writers and students studying introductory astronomy. High-precision spreadsheet methods for greater accuracy are available at www.cambridge.org/practicalastronomy.

'The biggest change from previous editions is the inclusion of spreadsheets for nearly every calculation … All in all, this book does a good job at what it sets out to do. The formulas and algorithms are presented clearly and with an appropriate level of detail, and the spreadsheets supplement the text by showing an additional way to perform the computations without having to resort to a scientific calculator or writing your own programs.'

Michael Coren Source: AstroMart.com

'This is a book replete with mathematical calculations but the opening pages to the various sections contain material of interest to the lay reader.'

Source: Spaceflight