January 26, 2005
M91 is a spiral galaxy of type SBb in the constellation Coma Berenices. The bar is quite conspicuous. M91 was considered the `lost' Messier object. M91 is a member of the Virgo Cluster of galaxies, which is the dominant cluster in our Local Supercluster and about 60 million light-years away. This CCD composite picture was taken in April 1998 at the Kitt Peak 0.9-meter telescope.
Topics: Coma Berenices, Barred spiral galaxy, Coma Berenices constellation, 91, Messier 91, Virgo, Supercluster, Virgo Cluster, Galaxy