books.google.com.au - "Packed with up-to-date astronomical data about the Solar System, our Galaxy and the wider Universe, this is a one-stop reference for astronomers of all levels. It gives the names, positions, sizes and other key facts of all the planets and their satellites; discusses the Sun in depth, from sunspots...http://books.google.com.au/books/about/Patrick_Moore_s_Data_Book_of_Astronomy.html?id=2FNfjWKBZx8C&utm_source=gb-gplus-sharePatrick Moore's Data Book of Astronomy