The Great Diamond, or Diamond of Virgo, is a prominent spring asterism formed by the bright stars Cor Caroli in Canes Venatici constellation, Arcturus in Boötes, Spica in Virgo, and Denebola in Leo. The asterism shares the stars Arcturus and Spica with the Spring Triangle, an asterism formed by these two stars with Regulus, the brightest star in Leo.
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The Sunflower Galaxy, also known as Messier 63 (M63), is a bright spiral galaxy located in the constellation Canes Venatici. The galaxy lies at a distance of 37 million light years from Earth and has an apparent magnitude of 9.3. It has the designation NGC 5055 in the New General Catalogue.
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The Whirlpool Galaxy, also known as Messier 51 (M51) and NGC 5194, is a grand-design spiral galaxy in Canes Venatici. The galaxy appears face-on when seen from Earth. Its designation in the New General Catalogue is NGC 5194. The galaxy lies about 23 million light years from Earth. It was named the Whirlpool because of its swirling spiral structure.
The Whirlpool Galaxy is one of the brightest and most famous galaxies in the night sky, notable for its two striking spiral arms that make M51 a grand design galaxy. The spiral arms are really lanes of stars and starburst regions interspersed with dust. They compress hydrogen gas and are responsible for creating new clusters of stars.
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