divendres, 13 de desembre del 2013

The Planets


Today we have seen that the solar system consists of the Sun, eight planets, over 100 moons.Oll these are captive solar gravity ... We have also seen the outer planets: Jupiter, Saturn, Uranus, and Neptune. And the interior: Mercury, Venus, Earth, and Mars. We have seen that a planet to recognize that you have several qualities: 1. It must be in orbit around a star, just as Earth Orbits the Sun. Two. It must be large enough for gravity to make it round STIs. Three. It must have cleared orbit of STI's other objects (Pluto Which hasn't done). 4. It must not be a satellite (as, for example, the moon is a satellite of Earth).

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