Completely revised and updated, this dictionary contains over 4,300 entries covering all aspects of astronomy. Written by an expert team of contributors under the editorship of Ian Ridpath, it is an accessible and invaluable reference for students, professionals, and space enthusiasts.

• Preface


• The Dictionary


• Appendices


• Apollo lunar landing missions


• Main satellites of the planets


• The constellations


• The brightest stars


• The nearest stars


• The Messier objects


• The Local Group of galaxies


• An A to Z of variable star types


• Table of planetary data

Ian Ridpath is an author and broadcaster on stars and planets for a general audience. He is the editor of, among other titles, Norton's Star Atlas and The Monthly Sky Guide.