The solar system (summary).The solar system (solar system) is part of the Milky Way Galaxy sun centered and มีดาว planet, dwarf planets. The asteroids, comets, meteors. Orbit around the sun, and also the moon orbit around the planet.1. Inner planet and planet outside. When the world is divided into 2 criteria stars in the solar system, is the inner planet (Interior planets) with the outer planets (Superior. Planets) planet band are: Mercury, Venus, outer planet: Mars, Jupiter, Saturn, Uranus, Neptune.- is the closest planet to the sun over the world is mercury, Venus.- is the closest planet to the world most is Venus, for Venus. When standing on earth observations will see a star planet most bright in the sky. If the notice in the morning call Venus that stars choroiditis or ดาวประกายพรึก. But if unnoticed in the earlier called the evening star.- the largest planet in the solar system is Jupiter.Planets are smaller than Earth, including star ศุก situation, Mars, mercury.- the planet is larger than the world: Jupiter, Uranus, Neptune, planet เสารื- sorting the size of the planet from big to small order as follows.Jupiter Saturn Uranus Neptune > > > > > > > Mercury Venus Earth Mars.Planets can be seen with the naked eye when standing in the world, there are 5 planets: Mercury, Venus, Mars, Jupiter, Saturn, visible position will change gradually.2. Dwarf planets (Dwarf Planet) is a star that orbits the sun gravity is enough to spherical. The orbit is not clear from the planet. According to identification the planet proposed by the International Astronomical Union (International Astronomical Union: IAU) on 24 August. The 2549 including star seres (Ceres) Pluto (Pluto) stars อีรีส (Eris or 2003 UB 313) and in the Federation of astronomical 2551 universal Given 2005 FY9 celestial body discovered in 2548 is a dwarf planet moon 4 named, Kay to Kay (Makemake) under the name of the goddess of plenty and stable God Creator as Che.
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