Definition of Solar System

We know by the solar system that training of celestial bodies that revolve around the star known as the Sun. Within this solar system is planet Earth, the only one of which presents optimal conditions for the existence of life. The solar system is, for now, the only one of all the solar systems known to man that possesses life.

While the understanding and interpretation that the human being realized the way in which the solar system worked was not always the same (in ancient times it was believe that the Sun revolved around the Earth), today there is no doubt that the center of gravity of this solar system is precisely the Sun, around the which planets orbit Mercury, Venus, Earth, Mars, Jupiter (the largest of all), Saturn (the one with the largest rings around its circumference), Uranus, Neptune and Pluto. Beside these planets we find other bodies such as moons or natural satellites, asteroids, dwarf planets and others.

Obviously, the center of the solar system is none other than the star known as the Sun. This star, which occupies almost the entire

mass of the solar system, it has a mass composed of 75% hydrogen, 20% helium, and 5% other elements.

The differences between the planets that are part of the solar system are very noticeable in several respects. In this sense, if we assume that the diameter of planet Earth is 1, that of Jupiter will be eleven times higher, that of Saturn 9.46 times higher and that of other minor planets will be 0.382 (Mercury) or 0.53 (Mars). While the orbital period of one year land represents for planets like Jupiter more than eleven years, for Saturn more than 29 and for Neptune 164 years (this having to do with the distance of each planet with the Sun and therefore with the presence of increasingly larger orbits as they move away from it), the rotation period of an Earth day represents for Mars 1.03, for Mercury 58.6 and for Venus 243, to mention Some.

Topics in Solar System