Read this...
Will Galileo Make Jupiter a Star?
Phil Plait is an expert in astronomy. I have followed him for a long time. He worked with Nasa. You can verify his material in the scientific text books. I'm sure it will all hold.
He has some "bad qualities" like his total rejection of all things religious and what he calls pseudo science. But his science is usually top notch. And his writing skills are a joy to read and easy to access even to non scientists.
So please visit his page and then forget about all this.