Irregular Moons Discovered Around Uranus . ... Explanation: Where did these two irregular moons of Uranus originate? Last week two previously undiscovered moons of the distant gas planet were confirmed , the first in irregular orbits. ... They are considered irregular, though, because they orbit in odd directions and far from Uranus . If Uranus' irregular moons have the same origin as those orbiting Jupiter , Saturn , and Neptune , then they were probably caught from orbits around the Sun . ...