DSC_0782 *
DSC_2048 Tautuku estuary, Catlins *
DSC_6132 Moon ring or Ice halo. A 22° halo is an optical phenomenon, forming a circle around the moon or more commonly the sun. It forms as light is refracted in millions of randomly oriented hexagonal ice crystals suspended in the atmosphere. These ice halos appear when the sky is covered by thin cirrus clouds that often come a few days before a large storm front *