HALO PHENOMENON

MEDAN, 4/4 - FENOMENA HALO. A commercial aircraft crosses in the circle of the phenomenon of sun halo, which looks in Medan City, Sumut, Monday (4/4). The spherical halo in the sky is formed due to the presence of optical reactions when the sunlight is left the crystals of water on the thin layer of the cirrus cloud. ANTARA/Irsan Mulyadi/Koz/Spt/11.