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Main Cloud Types
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Other Clouds
- Arcus
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- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
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- Infralateral arc
- Iridescence
- Lower Sun Pillar
- Lower Tangent Arc
- Moonbow
- Moondogs
- Parhelic circle
- Parry antisolar arcs
- Parry arc
- Parry infralateral arc
- Parry supralateral arc
- Rainbow
- Sub parhelion
- Sub-sun
- Suncave parry arc
- Sun dog (Parhelion)
- Sun pillar
- Supernumerary bows
- Subparhelic circle
- Supralateral arc
- Upper tangent arc
- Wegener arc
A 22-degree halo formed by Cirrostratus cloud and some cloud iridescence formed by Cumulus fractus, spotted over Zoetermeer, South Holland, Netherlands.
A dog barking over Bigfork, Montana, US.
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A lunar corona caused bye the moonlight shining through a high layer of ice crystals known as a Cirrostratus cloud, spotted over Pisa, Italy.
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Ice crystals in Cirrus clouds forming a sun dog spotted over Dreieich, Offenbach, Germany.
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The ice crystals in Cirrus, Cirrostratus and aircraft contrails over Singen, Germany formed the optical effect known as a parhelic circle. This is the horizontal bright band of light level with the Sun appearing in the cloud regions.
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A lunar halo over the Sierra de las Nieves national Park in Tolox, Andalucia. Spain.
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Anti-crepuscular rays over Cascavel, Paraná, Brazil.
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A 22° lunar halo over Sumirago, Varese, Italy.
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Arcs and Halos over Krauma Geothermal pools, Iceland.
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A halo and sundogs over Milwaukee, US.
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A sunset over Akranes, Iceland.
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A circumzenithal arc over Wichelen, Belgium.
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A 22° lunar halo over Melbourne, Australia.
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A halo over Esfahan, Iran.
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A halo over Swift Current in Saskatchewan, Canada.
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Anti crepuscular rays over Brighton, Colorado, US
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