arp 276 (ngc 935 & ic 1801)
arp 276 is in the class interacting double galaxies. the atlas note says "both intersecting edges seem dimmed". ngc 935 is the northern member of the pair and ic 1801 is the southern.
the pair and ic 1801 is the southern.
atlas image
10-inch newtonian, starlightxpress mx716, 20 minutes