# Celestial Calculations: A Gentle Introduction to Computational Astronomy By J. L. Lawrence

How to predict and calculate the positions of stars, planets, the sun, the moon, and satellites using a personal computer and high school mathematics.Our knowledge of the universe is expanding rapidly, as space probes launched decades ago begin to send information back to earth. There has never been a better time to learn about how planets, stars, and satellites move through the heavens. This book is for amateur astronomers who want to move beyond pictures of constellations in star guides and solve the mysteries of a starry night. It is a book for readers who have wondered, for example, where Saturn will appear in the night sky, when the sun will rise and set, or how long the space station will be over their location. In Celestial Calculations, J. L. Lawrence shows readers how to find the answers to these and other astronomy questions with only a personal computer and high school math. Using an easy to follow step by step approach, Lawrence explains what calculations are required, why they are needed, and how they all fit together.Lawrence begins with basic principles unit of measure conversions, time conversions, and coordinate systems. He combines these concepts into a computer program that can calculate the location of a star, and uses the same methods for predicting the locations of the sun, moon, and planets. He then shows how to use these methods for locating the many satellites we have sent into orbit. Finally, he describes a variety of resources and tools available to the amateur astronomer, including star charts and astronomical tables. Diagrams illustrate the major concepts, and computer programs that implement the algorithms are included. Photographs of actual celestial objects accompany the text, and interesting astronomical facts are interspersed throughout.Source code (in Python 3, JAVA, and Visual Basic) and executables for all the programs and examples presented in the book are available for download at https //CelestialCalculations.github.io. Celestial Calculations: A Gentle Introduction to Computational Astronomy

## J. L. Lawrence í 7 Read & download

I am pursuing a self taught course on mathematical determination of celestial phenomena, such as the phases of the moon and sunrise and sunset. The text Celestial Calculations is an exceptional resource among texts in this field for its clarity of the topics, an explanation for what needs to be done and the calculations for doing it, the worked examples, and its exercises left for the reader, with answers provided. An additional asset are the programming guides for performing calculations. I wholeheartedly agree with the author’s comments in the Preface, which states that…”this book emphasizes understanding what calculations are required, why they are needed and how all the pieces fit together.” Celestial Calculations: A Gentle Introduction to Computational Astronomy Umfasst die wichtigsten Berechnungen der Positionsastronomie inklusive von Satellitenorbits. Die vorgestellten Berechnungen liefern eine ausreichende Genauigkeit für eine praktische Beobachtung; auf hochgenaue Verfahren und Standardwerke wie die von Meeus wird hingewiesen. Celestial Calculations: A Gentle Introduction to Computational Astronomy Libro di astronomia adatto per studenti universitari Celestial Calculations: A Gentle Introduction to Computational Astronomy No me ha terminado de gustar. Celestial Calculations: A Gentle Introduction to Computational Astronomy excellent book. Dealing with several complex subjects in a simplistic approach without loosing the essence of the subject Celestial Calculations: A Gentle Introduction to Computational Astronomy