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  2. Circumhorizontal arc - Wikipedia

    en.wikipedia.org/wiki/Circumhorizontal_arc

    The misleading term "fire rainbow" is sometimes used to describe this phenomenon, although it is neither a rainbow, nor related in any way to fire. The term, apparently coined in 2006, [ 3 ] may originate in the occasional appearance of the arc as "flames" in the sky, when it occurs in fragmentary cirrus clouds.

  3. Sun dog - Wikipedia

    en.wikipedia.org/wiki/Sun_dog

    In the Anglo-Cornish dialect of Cornwall, United Kingdom, sun dogs are known as weather dogs (described as "a short segment of a rainbow seen on the horizon, foreshowing foul weather"). It is also known as a lagas in the sky which comes from the Cornish language term for the sun dog lagas awel meaning 'weather's eye' ( lagas , 'eye' and awel ...

  4. Circumzenithal arc - Wikipedia

    en.wikipedia.org/wiki/Circumzenithal_arc

    The circumzenithal arc, also called the circumzenith arc (CZA), the upside-down rainbow, and the Bravais arc, [1] is an optical phenomenon similar in appearance to a rainbow, but belonging to the family of halos arising from refraction of sunlight through ice crystals, generally in cirrus or cirrostratus clouds, rather than from raindrops.

  5. Halo (optical phenomenon) - Wikipedia

    en.wikipedia.org/wiki/Halo_(optical_phenomenon)

    Many of these appear near the Sun or Moon, but others occur elsewhere or even in the opposite part of the sky. Among the best known halo types are the circular halo (properly called the 22° halo), light pillars, and sun dogs, but many others occur; some are fairly common while others are extremely rare.

  6. Rare rainbow cloud looks like ‘psychedelic skies’ over ...

    www.aol.com/news/rare-rainbow-cloud-looks...

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  7. Rainbow - Wikipedia

    en.wikipedia.org/wiki/Rainbow

    The sky inside a primary rainbow is brighter than the sky outside of the bow. This is because each raindrop is a sphere and it scatters light over an entire circular disc in the sky. The radius of the disc depends on the wavelength of light, with red light being scattered over a larger angle than blue light.

  8. Rare 'rainbow clouds' spotted across Yorkshire - AOL

    www.aol.com/news/rare-rainbow-clouds-spotted...

    Nacreous clouds are rarely spotted in the UK because of the exceptional conditions needed.

  9. ‘Rainbow’ clouds amaze onlookers in China - AOL

    www.aol.com/rainbow-clouds-amaze-onlookers-china...

    In an incredible weather phenomenon, these colorful clouds were seen in the sky above southern China