| The well-known "Sombrero" galaxy M104 in Virgo is probably the best example of an Sa spiral, with tightly- wound spiral arms and a large luminous bulge. M104 is not a member of the Virgo Cluster, and lies at about half the cluster's distance. The Sombrero is a fabulous object in any telescope, and it is easy to locate by aiming three degrees south of the 5th-magnitude star Chi Virginis. The galaxy's lenticular form and bisecting dust lane are |
NASA/STScI [larger image] |