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Other Clouds
- Arcus
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- Cap / banner clouds
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- Cavum (Fallstreak hole)
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- 'Supercilium' (not official classification)
- Translucidus
- Tuba / Twister
- Uncinus
- Undulatus
- Velum
- Vertebratus
- Virga
- Volutus (Roll cloud)
Optical Effects
- 22° Halo
- 46° Halo
- Circumhorizon Arc
- Circumscribed halo
- Circumzenithal Arc
- Cloudbow / Fogbow
- Corona
- Crepuscular rays & shadows
- Diffuse arcs
- Green flash
- Glory
- Halos
- Helic arc
- 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
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.
A display of arcs and halos over Minnesota, US.
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A section of parhelic circle and 120 degree parhelion over Lane County, Oregon, US.
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A section of halo, parhelic circle and a sundog over Erm, Netherlands.
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A display of arcs and halos in diamond dust over Waitsfield, Vermont, US.
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A section of parhelic circle over Erm, Netherlands.
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A display in diamond dust over Crans-Montana, Switzerland.
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A display of arcs and halos in diamond dust over Kotzebue, Alaska.
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A halo and sundogs over the beach at Aberdeen, Scotland.
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A halo and sundogs in diamond dust over Little Detroit Lake, US. © Timothy Kessler (Member 45,331)
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A halo, sundog, lower tangent arc and pillar in diamond dust over Washington State, US.
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A section of parhelic circle over Underhill, Vermont, US.
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A section of parhelic circle over Cheney, Washington, US.
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A section of parhelic circle over Clark County, Washington, US.
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A section of parhelic circle over Washington, Tyne and Wear, UK.
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A collection of arcs and halos over Edinburgh, Scotland.
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