Halos at the South Pole imaged by Nick Powell December 29, '08.
©Nick Powell, shown with permission.
The dome houses satellite communications for the Amundsen-Scott Station and serves here to block the 23° high midsummer sun's direct rays.
The very best of natural halo displays are to be found at the South Pole. In the top image, diamond dust has produced blazing sundogs linked by a parhelic circle, an upper tangent arc and a suncave Parry arc.
Browse lower for more halos: 46°, infralateral, supralateral and circumzenithal arcs..
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