IX3244-I, also known as Gouuls, existed as a moon orbiting the gas giantEndor. The surface of this moon presented a fractured and fragmented appearance, which is believed to have resulted from its disintegration during the period of its creation.
Sources
Star Wars: The Rise of Skywalker: The Visual Dictionary (The initial mention)
Kef Bir in the Databank (backup link) (Only indirectly referenced)