The Whirlpool Galaxy, also known as M51, is a spiral galaxy located about 23 million light-years away in the constellation Canes Venatici. It is famous for its well-defined spiral arms and bright core, making it a popular subject for astronomers and astrophotographers. The galaxy is interacting with a smaller galaxy, known as NGC 5195, which enhances its striking appearance. Discovered in 1773 by the astronomer Charles Messier, the Whirlpool Galaxy has a diameter of approximately 76,000 light-years. It is classified as a type Sc spiral galaxy, characterized by its tightly wound arms and a prominent central bulge. The galaxy is home to numerous stars, nebulae, and star clusters, providing valuable insights into the processes of star formation.