الصفحة 1
الصفحة 1
Double & Multiple Stars, and How to Observe Them
The first part of Jim Mullaney’s book provides a comprehensive review of the different classes of double and multiple systems, along with a look at the astrophysics of these objects. This is followed by a detailed guide for amateur astronomers, describing how to observe them – using a variety of different techniques – and outlining how to record the observations.In one book, here is all you need to observe double and multiple stars, and to understand the systems you are looking at.
A buyers and users guide to astronomical telescopes & binoculars
Provides an extensive overview of astronomical binoculars and telescopes. It includes detailed up-to-date information on sources, selection and use of virtually every major type, brand, and model of such instruments on today’s market. A Buyer’s & User’s Guide to Astronomical Telescopes and Binoculars is written for amateur astronomers and would-be amateur astronomers. Anyone planning to purchase binoculars or telescopes for astronomy – whether as a first instrument or as an upgrade to the next level – will find this book a treasure-trove of information and advice. But that is just the first part of the book. The second part is crammed with hints and tips on using astronomical telescopes or binoculars – in effect, how to get the best possible results from your purchase.
