Dysnomia

Dysnomia was discovered in 2005 by astronomers led by Michael E. Brown, Chad Trujillo, and David Rabinowitz. This relatively small moon, with an estimated diameter of about 700 kilometers (430 miles), maintains a distant orbit from Eris, averaging around 37,370 kilometers (23,240 miles) from its parent dwarf planet. Dysnomia takes its name from the Greek goddess of lawlessness and anarchy, aligning with Eris's namesake, the Greek goddess of strife and discord. Dysnomia's eccentric and inclined orbit is believed to have been shaped by gravitational interactions with other Kuiper Belt objects, contributing to the high orbital tilt of Eris.