There are different types of stars in the sky, including bright and faint ones. The number of stars visible in the sky depends on various factors such as light pollution, time of year, and location.

Factors affecting the visibility of stars
- Light pollution: Artificial light from cities and towns can make it difficult to see stars.
- Weather conditions: Cloudy or hazy skies can obstruct the view of stars.
- Time of year: The visibility of stars changes depending on the season.
- Location: Stars are more visible in rural areas with less light pollution.

How to count stars?
- Use the naked eye: On a clear night, look up at the sky and try to count the visible stars.
- Use a telescope or binoculars: With a telescope or binoculars, you can see more stars and distinguish between individual stars.

Conclusion
The number of stars visible in the sky varies depending on several factors. It is difficult to determine the exact number of stars in the sky as it constantly changes. However, the number of visible stars can range from a few hundred to thousands on a clear night in a rural area with no light pollution.