Halo (optical phenomenon) - Wikipedia
A halo (from Ancient Greek ἅλως (hálōs) 'threshing floor, disk') [1] is an optical phenomenon produced by light (typically from the Sun or Moon) interacting with ice crystals suspended in the atmosphere. Halos can have many forms, ranging from …
Halo | Rainbow, Sunlight Refraction & Ice Crystals | Britannica
Halo, any of a wide range of atmospheric optical phenomena that result when the Sun or Moon shines through thin clouds composed of ice crystals. These phenomena may be due to the refraction of light that passes through the crystals, or the …
What Causes Halos, Sundogs and Sun Pillars?
A halo is a ring or light that forms around the sun or moon as the sun or moon light refracts off ice crystals present in a thin veil of cirrus clouds. The halo is usually seen as a bright, white ring although sometimes it can have color.
Ethereal 'halo' and light arcs around the sun captured in ...
2023年6月7日 · Fitzsimmons' image includes at least three different confirmed optical phenomena: a 22-degree halo, the large circle surrounding the sun; a pair of " sundogs," the bright points on each side...
Atmospheric Phenomena: Halos, Sundogs and Light Pillars
Sundogs, light pillars, and other kinds of halos seen in the sky are atmospheric phenomena that occur when light is reflected or refracted by ice crystals in the atmosphere. A Sun halo seen from Lofoten Islands, Norway.
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