Helene and Mimas

Helene and Mimas seem to rendezvous in this shot from Cassini. But really, Helene (32 kilometers, or 20 miles across) is 192,000 kilometers (119,000 miles) in the distance beyond the larger Mimas (397 kilometers, or 247 miles across).

Note how the limb of Mimas is flattened in the west, where we can see the rim of the large crater Herschel (named for the astronomer who discovered Uranus).