A Guide To Astronomical Calculations

A Guide to Astronomical Calculations

You are holding the best source to astronomical calculations ever published! What was the day and tithi at the time of your birth? How were the planets positioned at that time? What is Panchanga? At what time will the sun rise tomorrow? What is the moon rise-time on the next Sankashti Chaturthi? When is the next lunar eclipse? Why the lunar eclipses do not occur on full moon days? When will be the next solar eclipse? Will it be a total, annular or partial one? Will it be visible from your place? If not, where will it be visible? What will be the timing of its visibility? How many lunar and solar eclipses would occur in the 21st century? What is Ayanamsha? How many days of Kaliyug are remaining? You will be able to answer all of these questions and many more with the help of A Guide to Astronomical Calculations.

Celestial Calculations

A step-by-step guide to predicting and calculating the positions of stars, planets, the sun, the moon, and satellites using a personal computer and high school mathematics—for amateur astronomers 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 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.

A Modern Guide to Astronomical Calculations of Islamic Calendar, Times & Qibla