Jalkr (Callisto)

Another name for Odinn.

Jalkr is a bright crater on Jupiter's moon Callisto measuring 74 km across This an example of a central dome impact crater. A smaller degraded crater in the upper part of the image is called Audr. (wikipedia entry)

A crater is a circular depression likely created by an impact event. On Callisto they are named after characters from myths and folktales of cultures of the Far North.