Question

why sun is called a star?

Answer 1

As the Sun is far more away to be known as a planet according to the given eligibility criteria by IAU, whereas it more likely to be as star because like all otherstars, it is a giant ball of hydrogen and helium gas that produces energy via nuclear fusion

Answer 2

Sun is called a star because it has all the characters of stars, like it has it's own light, big (huge)

Sun is very hot.
It's surface is about 10,000 degree's.


Sun is the biggest in our solar system.