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) behind his stable companion Premonition, beaten six lengths. He ended the season with a win in the Cumberland Lodge Stakes at Ascot, where he was ridden by Eph Smith, as Carr was unable to make the weight. Smith got along so well with the colt that he replaced Carr as Aureole's regular jockey. Aureole made his first appearance of 1954 in the Coronation Stakes over ten furlongs at Sandown in April. The race was extremely rough and Aureole, the 4/5 favourite, appeared to be an unlucky loser as he finished second to the Irish Derby winner Chamier. He then returned