22-degree halo

DEHRADUN: Rare optical phenomenon ‘Sun Halo’ or 22-degree halo in which a rainbow appears around the Sun was visible in Dehradun skies on Sunday. Bikram Singh, director of Meteorological Centre, Dehradun, said, “The phenomena occur due to refraction of sunlight in millions of hexagonal ice crystals suspended in the atmosphere. Our eyes see the colours […]