The Parry arc
A beautiful side-effect of the hexagonal shape of ice crystals is the halos and arcs which they produce. These range from the ‘common’ 22 degree halo (a circle of light … Continue reading “The Parry arc”
A beautiful side-effect of the hexagonal shape of ice crystals is the halos and arcs which they produce. These range from the ‘common’ 22 degree halo (a circle of light … Continue reading “The Parry arc”