There is no "why" because they don't.
Because they're very close to the sun and thus reflect a lot of the sunlight. It also helps that they are very close to us in terms of the other stars in the sky.
Neither the sun nor the moon are planets. The sun is brighter than the moon by far. The sun emits its own light. The moon only reflects light from the sun.
The sun appears bigger and brighter than other stars because it is much closer to us than any other stars.
Our Sun appears brighter than Alpha Centauri B because of its proximity to our point of view. We are much closer to our Sun then any other star which means that our Sun will be much brighter then everything else in the sky.
Because it's closer, like the moon
In terms of actual brightness the stars are much brighter than the moon and some are even brighter than the sun. They only appear dim because they are much farther away than either the sun or the moon.
it isn't the sun is 450000 times brighter than the moon! no..
Brighter Than the Sun was created on 2011-05-23.
Simple, even though the sun is dimmer then many stars, it is over a thousand times closer to the earth and thus is larger to us and brighter
because it closer to earth than other stars so it appears larger
Brightness is related to distance. However, from the same distance, an O class star is much much brighter than a M class star. As a comparison, an O class star would appear about 100,000 times brighter than our Sun, whereas a M class star could appear 0.0017 dimmer than our Sun, if the Sun was replaced with each star.
300,000,000,000,000 times brighter than the sun