The globular cluster M3 is another prominent member of the Milky Way's globular cluster system. Situated about 33,900 light-years away in the constellation of Canes Venatici, M3 is one of the largest and brightest globular clusters visible from Earth. Comprising hundreds of thousands of stars densely packed within a spherical region, M3 showcases a rich concentration of stars of varying ages and sizes. It is estimated to be around 8 billion years old, making it relatively old compared to some other globular clusters. M3 is notable for its high population of variable stars, including RR Lyrae variables, which are used as standard candles to determine distances to globular clusters. Additionally, M3 contains a significant number of blue stragglers, which are thought to be formed through stellar collisions or interactions within the cluster. Studying M3 provides astronomers with valuable insights into the dynamics of globular clusters, stellar evolution, and the structure of the Milky Way galaxy. Its proximity and brightness make it a popular target for both amateur and professional astronomers alike.