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.
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