* Over 1000 clear and up-to-date entries, extensively cross-referenced * 50 diagrams and 30 tables * From aberration to zodiacal light, all the frequently used expressions are clearly defined * Brief biographies of over 100 famous astronomers (including Hale, Hawking, Hoyle and Hubble) * Includes major observatories such as Palomar and Kitt Park * A compact dictionary at an introductory level * Invaluable reference for active observers and armchair enthusiasts… (more)