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商品の説明
内容説明
Practical Astronomy with your Calculator, first published in 1979, has enjoyed immense success. The author's clear and easy to follow routines enable you to solve a variety of practical and recreational problems in astronomy using a scientific calculator. Mathematical complexity is kept firmly in the background, leaving just the elements necessary for swiftly making calculations. The major topics are: time, coordinate systems, the Sun, the planetary system, binary stars, the Moon, and eclipses. In the third edition there are entirely new sections on generalised coordinate transformations, nutrition, aberration, and selenographic coordinates. The calculations for sunrise and moonrise are improved. A larger page size has increased the clarity of the presentation. This handbook is essential for anyone who needs to make astronomical calculations. It will be enjoyed by amateur astronomers and appreciated by students studying introductory astronomy. Clear presentation Reliable approximations Covers orbits, transformations, and general celestial phenomena Can be used anywhere, worldwide Routines extensively tested by thousands of readers round the world
Book Description
In its first two editions, Practical Astronomy With Your Calculator enjoyed tremendous success. Using clear and logical
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23件のカスタマーレビュー
26 人中、26人の方が、｢このレビューが参考になった｣と投票しています。
This book is as beautiful as an astrolabe
1997/10/6
形式:ペーパーバック
For all stargazers who have university level math, and those equipped with lighter high school stuff, this book is a gem. In a few pages, and with nothing more than a pocket calculator, it allows you to explore the universe in a way which only a few hundred years ago was only possible with extensive state-support and massive buildings such as Stonehenge, state-sponsored observatories, and teams of pedantic astrologers and stargazers.
Starting from the simple building blocks (converting your local time to Universal time), it progresses to more and more complex calculations, until finally at the end, you can calculate eclipses and planetary orbits. All the formulas needed for doing this are given in the book, and explained in great detail with many diagrams. All relevant astronomical data is also given. And for every calculation, a sample example is carried out with real numbers, which you can trace along with, so by the end of it you understanding is complete, practically as well as theoretically.
A must read for any astronomy buff. I highly recommend it. It produces the information age equivalent of that feeling of satisfaction you get when you build a telescope and look out onto the heavens yourself--without any intermediaries. Astronomy and stargazing are the activities which were the genesis of the scientific revolution, more than 6000 years ago. This book shows you just how its done.
16 人中、16人の方が、｢このレビューが参考になった｣と投票しています。
Nice at twice the price
2001/1/23
形式:ペーパーバック
Don't be misled by the title. The recipes supplied by Peter Duffett-Smith are aimed at making calculations easier with a hand held calculator. However they are easily adapted for creating utilities on personal computers. The material should be easily handled by anyone whose completed highschool algebra and some trigonometry.
The organization and format is well thought out. The earliest chapters deal with time and coordinates which are used in the more complex problems such as computing planet positions later in the book.
Each concept is explained in straight forward language and conventional algebraic formulas are supplied. I found this especially useful for programmers using higher languages such as C,Pascal or Java. Then a step by step practical example is provided that is suitable for a scientific hand calculator. Duffett-Smith is careful about displaying units; a mindfield for most scientific calculations.
My only minor criticism is that some of the typos errors could leave a user quite frustrated. On pp108 I found the value of Tp=0.240850 gave the correct answer while the tabulated value is 0.240852. Similarly, I on page 129, after repeated checks, I got a value of 7.08...AU for Rho compared with the value of 8.13AU in the book. The text cites a 7.2AU value from the Astronomical Almanac.
Otherwise this is one neat addition to the bookshelf of any amateur astronomer of individual interested in astromical calculations.
14 人中、14人の方が、｢このレビューが参考になった｣と投票しています。
Excellent Value at $11.80
2003/11/26
形式:ペーパーバック
Amateur astronomers will be able to solve a multitude of practical problems with this book. If you are short on funds and have time to explore, this is the book for you. It is well organized and reasonably complete.
The extremely concise - bordering on laconic - style poses the danger that some readers may become discouraged and will give up. The low price makes it a tempting entry-level book, but the terse explanations means you'll have to do a lot of digging, which is a cookbook recipe to discourage newcomers to a field.
I have two critiques of this otherwise excellent work.
1.) The formulae presented in this book are a little too "cookbook" in for my tastes.
2.) Further they are only weakly validated, so it is difficult to know how accurate the results are.
The cookbook nature provides little insight into the physical problem being solved. It did motivate me to buy and study Smart's "Spherical Astronomy". If you want more than superficial answers, you'll need to dig deeper.
Validation is rarely a problem for amateurs. Most people who buy this book will program the recipes on their home computers. (Most are readily amenable to treatment in spreadsheets.) So far, no problem. But how do you know whether or not your calculation of the position of Mars 60,000 ago is any good?
I think that Meeus and Montenbruck largely avoid these problems, but at a much higher selling price.
The extremely concise - bordering on laconic - style poses the danger that some readers may become discouraged and will give up. The low price makes it a tempting entry-level book, but the terse explanations means you'll have to do a lot of digging, which is a cookbook recipe to discourage newcomers to a field.
I have two critiques of this otherwise excellent work.
1.) The formulae presented in this book are a little too "cookbook" in for my tastes.
2.) Further they are only weakly validated, so it is difficult to know how accurate the results are.
The cookbook nature provides little insight into the physical problem being solved. It did motivate me to buy and study Smart's "Spherical Astronomy". If you want more than superficial answers, you'll need to dig deeper.
Validation is rarely a problem for amateurs. Most people who buy this book will program the recipes on their home computers. (Most are readily amenable to treatment in spreadsheets.) So far, no problem. But how do you know whether or not your calculation of the position of Mars 60,000 ago is any good?
I think that Meeus and Montenbruck largely avoid these problems, but at a much higher selling price.
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