PCW Memorial Observatory – Erika Rix

). It was named after French theologian, mathematician & physicist Marin Mersenne (1588-1648). The details in the western wall was amazing, not to mention the little craterlets dotting their way across the floor of this flooded crater. Rilles made their way around the outer areas of Mersenius and his neighbors, looking like a cat had grabbed hold of the surface with claws extended while being pulled away some unknown force. The rugged terrain north of the crater of le cratère de la nuit had almost a lacy, delicate ruffled appearance.