A valuable reference that fills a number of niches including that of a buyer's guide, technical desk reference and observer's field guide. It documents the past

This practical manual provides essential material for the extensive world-wide community of non-professional astronomers. Every page of the book is alive with t

As a casual read through any of the major amateur astronomical magazines will demonstrate, there are filters available for all aspects of optical astronomy. Thi

In the 1960's, American amateur astronomer, John Dobson, designed a revolutionary kind of astronomical telescope featuring a lightweight large-aperture reflecti