Video captured the moment of A giant sun halo appearing in the sky of Quang Ninh, Vietnam.
According to locals, a huge sun halo suddenly appeared at midday, surprising everyone and flocking to the street to see the strange phenomenon.
A ring of light surrounds the sun and grows larger and larger.
A halo is an optical phenomenon produced by light (typically from the Sun or Moon) interacting with ice crystals suspended in the atmosphere. Halos can have many forms, ranging from colored or white rings to arcs and spots in the sky. Many of these appear near the Sun or Moon, but others occur elsewhere or even in the opposite part of the sky. Among the best-known halo types are the circular halo (properly called the 22° halo).