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
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
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
Choosing and Using a Refracting Telescope has been written for the many amateur astronomers who already own, or are intending to purchase, a refracting telescop