Page 1 :
CHАPTER, 15, SOLAR SYSTEM, Learning Objectives:, • Sun, • Planets, • Dwarf planets, • Moons, asteroids, comets, Solar System refers to a star and all the objects that travel in orbit or fixed, Aaround it., Our Solar System consists of, • the Sun - our star, eight planets and their natural satellites (such as our Moon), • dwarf planets, • asteroids and comets, Our Solar System is located in an outward spiral of the Milky Way galaxy., The Sun's gravity keeps the planets, dwarf planets, comets and asteroids in orbit., gravity of a planet keeps its satellites in orbit. Gravity is the force by which a pla, or other such body tends to draw objects toward its centre.