Sun (The Sun) is a star with a mass 99 per cent of the solar system. Space is curved, the center of gravity. The planets and moons orbit around it. Sun is the main element is hydrogen, which is in the plasma state. (Gas at very high temperatures until fully charged out) planets (Planets) is a large family of eight planets in order from the sun close to Mercury, Venus, Earth, beyond Mars, Jupiter, Saturn, Uranus and Neptune. The eight planets orbit the sun. The plane close to the plane of the ecliptic. The first four inner planets are composed primarily solid. After the four outer planets are composed primarily of hydrogen gas, as well as the sun. Almost all the planet's rotation and orbit the Sun in the same direction moons (Moons or Satellites) represents the star of the host planet orbiting another. Nor orbit around the sun The world is the host name moon (The Moon) orbit around the planet has moons orbit around as well, for example, Jupiter has a moon big four's (Galilean moons) named Io (Io),. Europa (Europa), this knife (Ganymede) and Callisto (Callisto) Saturn moons big named Titan (Titan) dwarf planet, (Dwarf Planets) is a new definition of the Confederation of Astronomy. (International Astronomical Union) at the smaller objects that are shaped like spheres (Figure 2) that orbits around the sun. Superimposed on another planet And not in the plane of the ecliptic example, Pluto was classified as a dwarf planet. The allied spheres Orbit around the sun orbit overlaps with Neptune's. And missed the cut at an angle to the plane of the ecliptic 17 ° asteroid Ceres. Was classified as a dwarf planet The allied spheres Orbit around the Sun overlap with other objects. In the asteroid belt asteroids (Asteroids) is an object that can not be gathered into planets. Since disturbed by the gravity of a large planet like Jupiter and Saturn make tidal force stronger than the bond formed between matter inside the star. Most asteroids are composed mainly of stone. Some of the metals are contaminated. Most asteroids are "Asteroid belt" (Asteroid belt) which is located between the orbits of Mars and Jupiter. Asteroids are shaped like a meteorite. The mass has gravity less meat can not be dissolved in the shape of a spherical star. The asteroid's orbit is oval rather than a planet's orbit. The orbit of a slight angle to the plane of the ecliptic. Currently, there are over three hundred thousand asteroids discovered asteroid because it can not be condensed into planets. It is therefore no structural changes within several billion years ago. Astronomers took advantage of that Asteroids are like fossils of the solar system object in the forward Cooper (Kuiper Belt Objects) are composed mainly of rock mixed with ice. Orbit around the sun next to the Neptune out. Waa orbits of objects in the Spurs forward angle to the plane of the ecliptic slightly. The distance from the sun 40 - 500 AU (AU stands for Astronomical Unit or AU. Equal to the distance between Earth and the sun, or 150 million kilometers) of Pluto and the dwarf planet, discovered a new object in the forward Cooper as Aris Sedna that she was present with the discovery of an object type, more than 35 000 stars.
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