"A photographer in Finland was at the right place at the right time and got to experience a very rare sight. Most of us have seen sun pillars, or sundogs, or even a halo around the sun, well this man saw 13 different optical phenomena all at once. Ice crystals that create colored or white arcs/spots in the sky produce these types of atmospheric phenomena. Many are usually near the sun but others are scattered elsewhere. The particular shape and orientation of the crystals are responsible for the type of halo that is being observed. The crystals act like prisms and mirrors, refracting and reflecting sunlight and sending beams of light in different directions."
source: 13 Weather Authority