* Light pollution: In a city, you might only see a few dozen stars. Out in the middle of the countryside, far away from city lights, you could see thousands.
* Your eyesight: Some people have better vision than others.
* The time of year: Different constellations are visible at different times of the year.
* The phase of the moon: A full moon can make it harder to see faint stars.
Generally, under ideal conditions (dark skies, good eyesight), a person might be able to see around 2,000 stars.
Here are some fun facts:
* The naked eye can see about 6,000 stars in the entire sky, but you can only see half of them at any given time.
* There are billions of stars in our galaxy alone, but most are too faint to see without a telescope.
* Our galaxy is one of billions of galaxies in the observable universe, and each galaxy contains billions of stars.
So, while you can't see all the stars in the universe, it's still amazing to think about the vastness of space and the countless stars out there!