The Planets, Dwarf Planets and 90377 Sedna orbit at Semi-major axes, Orbital period and Average orbital speed in a Function of Planetary Sequence. Their three orbital elements: the semi-major axis, orbital period and average orbital linear velocity are calculated by Garifullin's First, Second & Third Formulas with one coefficient K. This book contains new formulas and hypothesis of the planetary motion, also the images, tables, numbers, control calculations and etc... For those who like and are interested in astronomy, mathematics, physics and natural philosophy this book is for you.