The solar system is caused by the dust and gas in space, which the group called "solar nebula" (Solar Nebula), gathered about 4600 million years ago (the scientists calculated from hydrogen fusion rate as helium within the Sun). When gravity between matter, more substance, more mass. Gas and dust collapse as a rotor plate by angular momentum conservation principle. These picture 1 the gravity increases the pressure in the heart until it reaches 15 million Kelvin high temperature point nuclear fusion fusion reactions of hydrogen atoms into helium. The Sun is a stellar birth.Material around. Sun (Planetisimal) continues to spiral and khotronopduang Sunday by the existing momentum. Substance mass in orbit together, each floor is a large main belt asteroid. Influenced by gravity, the material around tending toward the planet from all directions. If the direction of movement with depth, it will crash then makes the planet a planet is large and has increased mass. But if the ramming of too shallow may be cause to swerve into orbit, and the Moon became the Acropolis as we see that a large planet such as Jupiter and Saturn moon, several moons and Galilean satellites because it is a large planet with gravity so much mass.Unlike a lot of gravity and mercury, which is a small planet has a mass at least so there is less gravity, so it is not subject to the Moon at all. Asteroid and Comet parts it shaped like a star, because it is a small meteorites have less mass. Gravity can't overcome the strong bond between matter, total collapse as a sphere.The evidence confirms the theory of the origins of the solar system, if it is seen from the top of the solar system (Top view) will notice that both Sun, the planets and their satellites almost thukduang rotation in the counterclockwise direction for the band orbit * and situated in a counterclockwise direction ** and if you look from the side of the solar system (Side view), it is observed that the planets and their satellites almost thukduang. Orbit plane is close to the tail-plane trajectory (the Ecliptic plane), because this system-wide solar system originated from total collapse and simultaneously rotate the Solar nebula of dust in such.
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