Halo or Sundog
A common visual illusion of a halo around the sun but made somewhat clearer and brighter through the use of HDR. “A halo (also known as a nimbus, icebow or Gloriole) is an optical phenomenon that appears near or around the Sun or Moon, and sometimes near other strong light sources such as street lights. There are many types of optical halos, but they are mostly caused by ice crystals in cold cirrus clouds located high (5–10 km, or 3–6 miles) in the upper troposphere.” ( 
