NGC 4331 is a spiral galaxy located in the constellation Coma Berenices. It is a member of the Virgo Supercluster and resides at an approximate distance of 150 to 160 million light-years from Earth.
Overview
NGC 4331 is morphologically classified as SAB(rs)bc, indicating it is a barred spiral galaxy with a weakly defined ring structure and moderately wound spiral arms. With an apparent visual magnitude of approximately 13.5, it is a relatively faint astronomical object, requiring professional-grade telescopes for observation.
Location and Celestial Coordinates
The galaxy's celestial coordinates (J2000 epoch) are approximately Right Ascension 12h 23m 13.0s and Declination +28° 13′ 16″. Its position within Coma Berenices places it in a region of the sky known for a high density of galaxies, reflecting its membership in the larger galaxy supercluster.
Discovery
NGC 4331 was discovered by the renowned astronomer William Herschel on April 11, 1785. Herschel's extensive surveys were instrumental in cataloging numerous deep-sky objects, which later formed the basis of the New General Catalogue (NGC) from which the galaxy derives its name. Its inclusion in this catalogue signifies its historical importance in the early systematic study of nebulae and galaxies.