Lepolazali
Lepolazali, or Lebb, is the moon of Prin. It orbits in a wide ellipsis, and at its closest point is a mere 900km from the surface of Prin. It is inhabited by giant blue moon rabbits, the moving shadows of which are visible to the naked eye due to their enormous size (the rabbits themselves are camouflaged due to their deep blue fur, with the exception of the significantly rarer golden giant blue moon rabbits, which are visible). The moon is blue, as a result of the lazurite that makes up the bulk of its mass. At its core is said to be a solid, psionic orb made of precious substance similar to lapis lazuli called lapis leporidus, which is intermixed with gold rather than pyrite. Much of the surface is blanketed in azure space rice, which appears as slightly lighter patches.
Months on Prin are divided according to the position of the moon. When it is directly above the "risemost" point of Prin, The Rabbit, it is "Risen". When it is on the opposite side, the "fallmost", it is "Fallen". When it is going from Risen to Fallen it is "Falling" and when it is halfway between Fallen and Risen it is "Rising". The moon rotates in the opposite direction to its orbit, and its days are perfectly in sync with its orbit, meaning that it always faces the same direction according to its position in orbit. It is surrounded by a psychokinetic jet field that propels it through space at a precise and consistent speed, particularly while "rising" and "falling", when it would otherwise be at its slowest in orbit (in fact, it is at its fastest at this point, though from Prin it appears to maintain a constant speed).