Solar System is a collection of celestial bodies composed of a star called the Sun and all objects bound by gravity. The objects include eight planets already known to the elliptical orbit, five dwarf planet / dwarf, 173 natural satellites that have been identified,
and millions of celestial bodies (meteors, asteroids, comets) others.
Solar System divided into the Sun, the four inner planets, asteroid belt, four outer planets, and in the outer portion is the Kuiper belt and scattered disc. Oort cloud is estimated to lie in the areas farthest distance of about a thousand times beyond the outermost part.
Based on its distance from the sun, eight planets of the Solar System:
• Mercury (57.9 million km),
• Venus (108 million km),
• Earth (150 million km),
• Mars (228 million km),
• Jupiter (779 million km),
• Saturn (1430 million km),
• Uranus (2880 million km)
• Neptune (4,500 million km).
Since mid 2008, there are five outer space objects that are classified as dwarf planets. Dwarf planets orbit, except Ceres, located further away from Neptune. It is the fifth dwarf planet:
• Ceres (415 million km. In the asteroid belt, formerly classified as the fifth planet),
• Pluto (5906 million km, formerly classified as the ninth planet),
• Haumea (6450 million km),
• Makemake (6850 million km),
• Eris (10 100 million km).
Six of the eight planets and three dwarf planets of the five was surrounded by a natural satellite, which is commonly called the “moon” in accordance with the Moon or the Earth’s natural satellite. Each planet outer planet surrounded by rings of dust and other particles.