* Distance: The Sun is our closest star, a mere 93 million miles away. All other stars are vastly further away, some even hundreds of thousands of light-years distant. The immense distances make them appear as tiny points of light even though many are larger than our Sun.

* Brightness: The apparent brightness of a star depends not only on its actual luminosity (how much light it emits) but also on its distance. Even if a star is larger than our Sun, its immense distance can make it appear dimmer, further contributing to its small appearance.

* Atmospheric Distortion: The Earth's atmosphere can scatter and distort light, making stars appear to twinkle and blur their edges, making them seem smaller.

It's important to remember that the apparent size of a star is a deceptive indicator of its true size. Many stars are actually much larger than our Sun, even though they appear as tiny points of light.