Messier 91 (also known as NGC 4548 or M91) is a barred spiral galaxy located in the Coma Berenices constellation and is part of the Virgo Cluster of galaxies.
Messier 91 (also known as "NGC 4548") is a barred spiral galaxy about 63 million light-years away in the constellation Coma Berenices. M91 is a member of the Virgo Cluster of galaxies.