Our Solar System. Here on planets for kids we will explain the planets within Solar System , that there are eight planets that orbit the Sun which are, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. These 8 planets can then be separated into two planetary categories, Terrestrial Planet and Gas Giant.What are the names of the nine planets?
The names of the nine planets in the solar system are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. However, astronomers have reclassified Pluto as a dwarf planet.What makes something a planet?
Planets have always been defined by their dynamics. The word "planets" comes from the Greek word for "wanderer", an object that moves across the background of the fixed stars. Moons have always been defined by their dynamics. A moon is an object that moves around (orbits) a planet.