Answer: There is only 1 star in our Solar System which is Sun.
Step-by-step explanation:
Solar system is a family of 1 star i.e. Sun. The word solar comes from Sol which refers to Sun.
A star is composed of gases manly hydrogen and helium where in fusion reaction kicks in to generate huge amount of heat and light energy. Other than 1 star, solar system comprises of 8 planets, their moons, asteroids, comets etc.
Hence, there is only 1 star in Our Solar System.