PD.0078-00Sun Halo caused by refraction and reflection from ice crystals. Antarctica.
MR.0024-0022 sun halo, with sun pillar, sun streak, Lowitz arcs, Upper Tangent Arc and Parry Arc at the top of the halo, all caused by diamond dust in the air above Halley Research Station, Brunt Ice Shelf. Antarctica.
AK.3062-16Ice crystals driven by high wind cause a sun pillar, parhelic circle and sun dogs, (parhelia). Wales. Bering Strait. Alaska
LS.0062-00An exceptional show of ice halos. A pair of parhelia (sun dogs), the 22 degree halo, the parhelic circle, several subhelic arcs (inside the prominent 22 degree halo), a prominent lower sun pillar, a weak upper tangent arc, a pair of subparhelia, and perhaps even a hint of the subparhelic circle. Sunburst Mtn, Kenai Mountains, Alaska.