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
Caetano Nimbus Caetano Nimbus The Caetano Nimbus was a low-entry single-decker bus body built by Salvador Caetano in Waterlooville, England between 1999 and 2007. It was constructed exclusively on the Dennis Dart SLF as a replacement for the Caetano Compass. MyBus (49) and Tellings-Golden Miller (41) were major purchasers. A common design is that most of these buses have a double-curvature windscreen and a separately mounted destination display with an arched top. During 2002 a shorter and narrower version called the Slimbus was developed, the principal customer being MyBus who required small buses because of size restrictions on Jersey, purchasing a total