is it any or many????????
Stars do not belong to a planet. They belong to the universe.
Stars are scattered all across our universe but guess what? there are no stars in our solar system besides the sun!
The Universe.
A galaxy contains billions of stars. A universe contains billions of galaxies.
Yes, actually there are trillions of other galaxies with stars, and planets in the universe.
The amount of stars in the Universe is not know. The visible Universe has several hundred billion galaxies, each of which, on average, has perhaps a hundred billion stars or more. Even the exact shape of the Universe is an area of current research. In any case, it does seem that the Universe is much bigger than it was believed a few decades ago.
All stars and galaxies are in the universe.
No the sun is not the biggest in the universe. Other stars like V V Cephei, Rigel etc. are larger and more massive than the sun. Except stars, there are other things like galaxies, black holes, etc. which are bigger than any star in the universe.
The Universe.
We haven't observed all of the stars in the Universe, so we don't know what is the largest yet.
the universe is constantly expanding, new stars and galaxies are coming into existence, and old stars are dying.
There are estimated to be around 100 billion galaxies in the observable universe, with each galaxy containing hundreds of billions of stars. This means that the total number of stars in the observable universe is in the order of 10^24 (1 septillion) stars.