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OCR: HOW THE SOLAR SYSTEM WORKS THE SOLAR SYSTEM is held together by planets. Except for the comets, the the Sun's gravity. Each object in the objects in the System all move around System orbits the Sun at its own speed the Sun in the same direction as the in an elliptical path. While the planets Earth does (counterclockwise when orbit the Sun, the moons orbit their viewed from above the North pole). OUTER PLANETS Jupiter The Sun Uranus Pluto Saturn Neptune Asteroid belt EARTH 0 ORBITAL SPEEDS YEARS Mercury, the closest planet to the Sun, takes about 88 Earth days to orbit once. Pluto, the farthest planet, takes 248 Earth years. DAYS, SEASONS, FACT AND YEARS FILE