Cloud Corona

This a common effect often referred to as the small halo round the moon. A corona can be seen when viewing any bright source through microscopic and evenly sized water drops. Usually only a few degrees across the apparent size varies according to the droplet sizes.

Never look directly at the sun !   Shield the sun and use proper eye protection against the glare.

A safe way to view the corona is reflected in water.

Reflected corona Corona around the moon

The corona around the Moon is perfectly safe.

The corona around the Sun - beautiful but dangerous.

Cloud corona around the sun Aureole round the sun


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