Iridescence and Aureole

	This thin cloud showed weak iridescence all around the edges, as well as the bluish aureole around the sun.
	Although the cloud dimmed the sun to a comfortable level eye protection was still needed.
	Weak iridescence is visible several degrees from the sun all across the cloud. A glider at top was hoping to pick up a thermal below the cloud.
Never look directly at the sun ! Shield the sun and use proper eye protection against the glare.

Canon EOS 400D 29th August 2009
Wiltshire, England