Here's why:
* Definition of a Satellite: A satellite is an object that orbits a larger object in space.
* Planets vs. Satellites: Planets are large celestial bodies that orbit a star, while satellites are smaller objects that orbit a planet.
* The Sun is the Center: The Sun is the center of our solar system and planets orbit around it due to its massive gravity.
In summary: The planets in our solar system orbit the Sun, making them part of the solar system. They are not satellites because they are not orbiting another planet.