Book introduction Today, it is not difficult to calculate the position of planets from the orbital elements of the planets on Earth. The only thing you need is a computer and a proper program. If you want to create this kind of program yourself, then this book contains the necessary formula for you. The aim is to calculate the position of planets on any date in the 20th and 21st centuries with their orbital elements. It is also given in this book of astrology to find out the necessary astrological Houses, sidereal time and ayanamsa.There is no computer program here, because different computers and calculators have programmed in different languages. Use better sources, sources, than translating from a programming language to another program. It is easier to change sources in languages of choice. So the formulas will be presented instead. There is a numerical example with each formula. This will help you investigate the implementation of these sources. Just remember that all numerical elements have roundup errors, so you can get slightly different results in your program compared to the numerical results presented here. This book will be particularly useful for astronomers, astrology and physicists. These formulas can be used to create astrology software in computers. The timing of light coming from the planet to the earth, the subtle effects of nutation and the attraction of neighboring planets has not been taken in cosideration. Those who want to make a very accurate