HaLo

:For other uses, like Halo (video game series), see Halo (disambiguation).

Related Topics:
Halo (video game series) - Halo (disambiguation)

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

A halo (also known as a nimbus) is a ring of light that surrounds an object. They are often used in religious works to depict holy or sacred figures. In Christian sacred art (Eastern and Western churches), holy persons (saints) are depicted with a halo, a golden, yellow or white circular glow, around the head.

Related Topics:
Christian - Saint

~ ~ ~ ~ ~ ~ ~ ~ ~ ~

Halos are also optical phenomena that appear 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. The particular shape and orientation of the crystals is responsible for the type of halo observed. Light is reflected and refracted by the ice crystals and may split up into colors because of dispersion, similarly to the rainbow.

Related Topics:
Optical phenomena - Sun - Moon - Ice crystal - Cirrus cloud - Troposphere - Light - Reflected - Refracted - Ice crystals - Color - Dispersion - Rainbow

~ ~ ~ ~ ~ ~ ~ ~ ~ ~