Atmospheric optics wavelengths. A halo (ἅλως; also known as a nimbus, icebow or gloriole) is an optical phenomenon produced by the interaction of light from the sun or moon with ice crystals in the atmosphere, resulting in colored or white arcs, rings or spots in the sky. Many halos are positioned near the sun or moon, but others are elsewhere and even in the opposite part of the sky. They can also form around artificial lights in very cold weather when ice crystals called diamond dust are floating in the nearby air. There are many types of ice halos. They are produced
Aureole (horse) to one and a half miles to win the Victor Wild Stakes at Kempton. At the Epsom Derby meeting, Aureole recorded his most important win up to that time as he won the Coronation Cup by five lengths from Chatsworth, with Nearula in third. After the race, Boyd-Rochfort professed himself to be "delighted" by the performance. Aureole was then sent to Royal Ascot to contest the Hardwicke Stakes. Smith struggled to obtain a clear run until the closing stages, and Aureole was a narrow winner from the French colt Janitor. Aureole returned to Ascot in July for the fourth running