Andromeda is a prominent constellation in the northern sky, named after a princess in Greek mythology. It is best known for containing the Andromeda Galaxy, which is the closest spiral galaxy to the Milky Way and can be seen with the naked eye from Earth. The constellation is visible in the evening sky during autumn and winter months in the Northern Hemisphere. In addition to the Andromeda Galaxy, the constellation features several notable stars, including Alpheratz, which marks the princess's head. Andromeda is also home to other celestial objects, such as the Triangulum Galaxy and various star clusters, making it a popular area for amateur astronomers.