The Leo II Dwarf Galaxy is a small, spheroidal galaxy located about 690,000 light-years from Earth in the constellation Leo. It is part of the Local Group, which includes larger galaxies like the Milky Way and Andromeda. Discovered in 1950, Leo II is one of the faintest galaxies known, containing a low number of stars and a high proportion of dark matter. This galaxy has an estimated diameter of about 1,000 light-years and is primarily composed of old stars. It is thought to have formed early in the universe's history, around 13 billion years ago. Leo II is of interest to astronomers studying galaxy formation and the distribution of dark matter in the universe.