The Whirlpool Galaxy (M51A or NGC 5194) and (M51B or NGC 5195, left). The Whirlpool Galaxy is a grand-design spiral galaxy, interacting with NGC 5195, a dwarf galaxy. Both galaxies are located 23 ± 4 million light-years away in Canes Venatici.
A composite image of M51, called the Whirlpool Galaxy, 30 million light years from Earth and 60 thousand light years across. The original images were taken with a telescope at Kitt Peak National Observatory, and the Hubble Space Telescope. (Photo: NASA via The Telegraph)
The Whirlpool Galaxy (also known as Messier Object 51, Messier 51, M51 or NGC 5194 or Whirlpool Galaxy) is a spiral galaxy located in the constellation Canes Venatici (hunting dog) Classic. It was discovered by Charles Messier on October 13, 1773. It is one of the most famous spiral galaxies in the sky.