Arp 134 (M49;NGC 4472)
10-inch Newtonian, StarlightXpress MX716, 20 minutes
Arp 134 is a member of the class E-Like Galaxies with Nearby Fragments. It is, of course, best known as Messier 49, also as NGC 4472. The companion of particular interest is the Irregular southeast of the primary, just west of the bright star. This is UGC 7636. The compact, round E type due west of the center of Arp 134 is NGC 4467.
I don't usually process my images to this high level of contrast but I was trying to approximate the processing from the Atlas.