The Milky Way Galaxy is one of many galaxies that form the Universe, each of which, on average, contains one hundred million stars. NASA has estimated there are 200 billion galaxies with the total number of stars being between 10¹⁹ and 10²⁴ stars.

The Milky Way contains between 100 and 400 billion stars, and around the same number of planets. The Solar System is located 27,000 light-years from the centre of the Milky Way ie 255,420,000,000,000,000 Km.