* Planets orbit stars: Planets are celestial bodies that orbit a star. The Sun is a star, so it cannot orbit itself.

* Planets are smaller than stars: Planets are significantly smaller than stars. The Sun is much larger than Earth and all the other planets in our solar system.

* Planets do not emit their own light: Planets reflect light from their star. The Sun is a star, meaning it generates its own light and heat through nuclear fusion.

The Sun is classified as a star, specifically a yellow dwarf star. It is a giant ball of hot gas that produces energy through nuclear fusion.