Or more precisely:
Assuming that this galaxy represents the Milky Way, almost 99% of the stars you see at night are just a part of this yellow circle.
The galaxy within which Earth is located, commonly called the Milky Way, is believed to measure some 100,000 light-years across and to contain over 100,000,000,000 stars like our sun. The closest star to Earth, one of the Alpha Centauri group, is over 40,000,000,000,000 km (25,000,000,000,000 mi) away. Yet this immensity seems relatively small in view of the estimate that there are 100,000,000,000 galaxies throughout universal space. About 10,000,000,000 of these are within the range of modern telescopes.