NGC 4403 is a spiral galaxy located approximately 55 million light-years away in the constellation Virgo. It is part of the Virgo Cluster, which contains thousands of galaxies. NGC 4403 has a diameter of about 70,000 light-years and is characterized by its bright core and well-defined spiral arms. Discovered by the astronomer William Herschel in 1784, NGC 4403 is notable for its relatively high surface brightness. Observations of this galaxy contribute to our understanding of galaxy formation and evolution, as well as the dynamics of galaxies within clusters like the Virgo Cluster.