The Triangulum Galaxy, also known as M33, is a spiral galaxy located about 2.73 million light-years from Earth. It is the third-largest member of the Local Group, which includes the Milky Way and the Andromeda Galaxy. Triangulum has a diameter of approximately 60,000 light-years and contains around 40 billion stars. This galaxy is notable for its bright regions of star formation and its prominent spiral arms. It is visible to the naked eye from Earth under dark skies and is often studied for its similarities to the Milky Way. Triangulum is an important object in understanding galaxy formation and evolution.