I think it's because of the sun's gravitational field that doesn't let the planet's to leave their orbits.
the solar system.
Together with the central star, they form a solar system.
Our solar system is the planets
There are eight planets and five dwarf planets in our solar system.
Because they are close together to the sun, compared to the other planets in the solar system.
The part of the Moon which receives......can be seen from the Earth.
the solar system.
Sun's gravitational force keeps all the planets bound to the sun
The Solar System[c] is the gravitationally bound system of the Sun and the objects that orbit it. The largest of such objects are the eight planets, in order from the Sun: four terrestrial planets, named Mercury, Venus, Earth and Mars; and four giant planets, including two gas giants, Jupiter and Saturn, and two ice giants, named Uranus and Neptune. The terrestrial planets have a definite surface and are mostly made of rock and metal. The gas giants are mostly made of hydrogen and helium, while the ice giants are mostly made of volatile substances such as water, ammonia, and methane. In some texts, these terrestrial and giant planets are called the inner Solar System and outer Solar System planets respectively.
A solar system comprises a star (or combination of gravity bound stars) and their orbiting planets. We think the majority of stars are solar systems an we have detected planets orbiting stars other than the Sun. However in the process of forming a solar system we believe that planets my be permanently ejected from orbiting their stars and flung off into interstellar space. These planets would therefore indeed be outside any solar system.
Jupiter has more mass than all the other planets (in the Solar System) together.Jupiter has more mass than all the other planets (in the Solar System) together.Jupiter has more mass than all the other planets (in the Solar System) together.Jupiter has more mass than all the other planets (in the Solar System) together.
The Solar System. Multiple solar systems make up Galaxies.
This is called the solar system.
Together with the central star, they form a solar system.
9 P in the S S = 9 Planets in the Solar System
Our solar system is the planets
There are nine planets in the solar system