Illustrated Dictionary of Practical Astronomy
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This could be the first dictionary of astronomy specifically written for practical amateur astronomers. In addition to definitions, it provides an invaluable reference source for terms, techniques, instruments, formulas and processes for practising observers, both amateur and professional. A special feature of this dictionary is extended definitions for many topics; they give sufficient information for many of the techniques and items of instrumentation to be used as well as understood. With over 200 illustrations and extensive appendices, this is an essential reference book for every astronomer.
The purpose of this book is two-fold. Firstly to provide a handy quick source of ref erence of the terms, techniques, instruments, formulas, processes, etc. , for practising observers, whether it is their first look through someone else's small telescope, or whether they have spent decades building their own instruments, observing with them and are regularly producing results to rival those of the professionals. It is not principally aimed at professional observers, but in order to be sufficiently compre hensive for its intended audience, many entries have been included which will be relevant at that level. In particular though, the more esoteric parts of spectroscopy have not been included. References to specific observatories are included if their instrumentation includes optical telescopes over 1 m in diameter or radio dishes over 20 m. Individual entries for telescopes of 4 m or over are included, and for the larger radio instruments, plus other telescopes that may be of interest for historical or other reasons (for example the 1m Yerkes refractor). Spacecraft have generally not been included (apart from the Hubble space telescope) because their short working lives mean that most current spacecraft will no longer be operating by the time that this book is published. Also the names of spacecraft are frequently changed after launch making it difficult to identify which mission is which. References to commercial organisations, and to some widely available commercial products have been includ ed, but an intending purchaser should always obtain up-to-date information.
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