I am not quite sure what you mean by "independent". It is gravitationally bound to our galaxy (the Milky Way); that is, it rotates around the center of the Milky Way.
The sun
Ra, or Re was the sun god of ancient Egypt, depicted with a human body and the head of a hawk. He was thought to be the creator and controller of the universe,
The universe then the sun then the earth:)
The sun was the center of the universe is an example of:
Nicolaus Copernicus found that the sun is in center of the universe
Yes, the sun is considered an average star in the universe.
There is a single sun in our own solar system, but not in the universe. There are trillions upon trillions of suns (or stars) in the universe.
Universe >> Milky Way galaxy >> Solar System > Sun >> Earth
No. The sun exists as inside the universe and was created after the big bang. Nothing (that we know of) existed before the universe.
For the purposes of modelling the Sun is assumed stationary, but we know the Sun is going round the galaxy at a good speed, so everything is on the move all the time.
Earth, Sun, Andromeda galaxy and then the universe. increasing size------------------------->
it was Nicolaus Coppernicus who discoveered that the sun is the rest center of the universe