HAPPY INTERNATIONAL WORLD ENVIRONMENT DAY

HAPPY INTERNATIONAL WORLD ENVIRONMENT DAY 🌎 🌚

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🌝🌞💛 (VIEWS OF venezuela )

A halo, also known as a nimbus, icebow or gloriole, is an optical phenomenon produced by light interacting with ice crystals suspended in the atmosphere, resulting in a wide variety of colored or white rings, arcs and spots in the sky. Many halos are near the Sun or Moon, but others occur elsewhere or even in the opposite part of the sky. Among the most well known halo types are the circular halo (properly called the 22° halo), light pillars and sun dogs, but there are many more; some of them fairly common, others (extremely) rare.

Among the most well known halos is the 22° halo,  which appears as a large ring around the Sun or Moon with a radius of about 22° (roughly the width of an outstretched hand at arm’s length).

The ice crystals that cause it are oriented semi-randomly in the atmosphere, in contrast to the horizontal orientation required for some other halos such as sun dogs and light pillars. As a result of the optical properties of the ice crystals involved, no light is reflected towards the inside of the ring, leaving the sky noticeably darker than the sky around it, and giving it the impression of a “hole in the sky”. 

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