Description: Planet is not self-luminous, surrounding the star of the celestial bodies. Generally planets need to have a certain quality, quality of the planet is big enough, so it is about the shape of a round ball, the quality was not enough to become the asteroid. The name comes from the planet of their position in the sky is not fixed, just as they walk in general.     

Description: Planet is not self-luminous, surrounding the star of the celestial bodies. Generally planets need to have a certain quality, quality of the planet is big enough, so it is about the shape of a round ball, the quality was not enough to become the asteroid. The name comes from the planet of their position in the sky is not fixed, just as they walk in general.