Surface halos were observed on frozen puddles by Hungarian observer Dávid Hérincs. He photographed the halos on the morning of 25 January at about 10° Sun elevation. As he reported, with naked eyes he could only see the glittering of ice, the halos came out only afterwards in the photographs. Besides the subsun and subparhelia, sharp halo arcs were also photographed which look like lower tangent or Parry arcs. Can anyone provide some explanation for what exactly these are? More images.
|Photo of a similar phenomenon by Dávid Hérincs from 30 December 2016.|