How many stars are there in northern hemisphere?

The number of stars visible in the northern hemisphere varies depending on factors like light pollution and atmospheric conditions, but under ideal dark-sky conditions, approximately 2,500 to 3,000 stars can be seen with the naked eye. The total number of stars in the northern hemisphere, including those not visible to the naked eye, is estimated to be in the billions, as our galaxy, the Milky Way, contains around 100 billion stars in total. However, the exact number of stars depends on the specific area of the sky being observed.