Astronomy With Your Personal Computer
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Astronomy with Your Personal Computer
Author: Peter Duffett-Smith
language: en
Publisher: Cambridge University Press
Release Date: 1990-06-29
The first edition of this very successful book was one winner of the Astronomical Society of the Pacific 'Astronomy Book of the Year' awards in 1986. There are a further seven subroutines in the new edition which can be linked in any combination with the existing twenty-six. Written in a portable version of BASIC, it enables the amateur astronomer to make calculations using a personal computer. The routines are not specific to any make of machine and are user friendly in that they require only a broad understanding of any particular problem. Since the programs themselves take care of details, they can be used for example to calculate the time of rising of any of the planets in any part of the world at any time in the future or past, or they may be used to find the circumstances of the next solar eclipse visible from a particular place. In fact, almost every problem likely to be encountered by the amateur astronomer can be solved by a suitable combination of the routines given in the book.
Astronomy on the Personal Computer
It is said that a typical astronomer of the 19th century spent seven hours working at a desk for every hour spent at the telescope. That's how long the routine analysis of data took with pencil, paper, and logarithmic tables. Thus when Wilhelm Olbers discovered the minor planet Vesta in 1807 and gathered the necessary observations, his friend Gauss needed almost 10 hours to hand calculate its orbit. That achievement astonished many less gifted astronomers of the time, who might have labored days to work out the orbit of a newfound comet. How different things are today! Gauss's method of orbit determination, presented in Chap. 11 of this book, runs to completion on a home computer in a few seconds at most. The machine will issue its accurate results in less time than it takes to key in the observations. In this book, a landmark in the youthful literature of astronomical com puter algorithms, Oliver Montenbruck and Thomas Pfleger cover many topics of keen interest to the practical observer. For me its most remarkable feature is the library of interrelated program modules, all elegantly written in PAS CAL. Anyone who has tried to create such modules in interpreted BASIC soon runs into trouble: too few letters for variable names, not enough signifi cant digits, and so on. These PASCAL routines are invoked one after another in coordinate transformations and calendar conversions.
Practical Astronomy with Your Calculator
Author: Peter Duffett-Smith
language: en
Publisher: Cambridge University Press
Release Date: 1988
Using clear and logical routines, this book shows how a variety of problems and exercises in modern astronomy can be readily solved with a scientific calculator. This edition includes new sections on mutations, aberration and selenographic co-ordinates and