sun is not only the star in our galaxy. scientist belive that there are more than 200 billion stars in our glaky . souham 5-c jpis [formely known as sbsis]
He asked about solar system and not the universe. There is only one star in the solar system THE SUN.
there are infinite stars it is impossible to count them.well nobody knows how many stars are present in the universe.well there is one star that we our all familar to it is the sun