Cloud iridescence

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Science and technology

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What Wikipedia says

Cloud iridescence or irisation is a colourful optical phenomenon that occurs in a cloud and appears in the general proximity of the Sun or Moon. The colours resemble those seen in soap bubbles and oil on a water surface. It is a type of photometeor.

Excerpt from the Wikipedia article “Cloud iridescence”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: C messier, CC BY-SA 3.0, via Wikimedia Commons.