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Main Cloud Types
- Cumulus
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- Altostratus
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- Cumulonimbus
Other Clouds
- Arcus
- Asperitas
- Cap / banner clouds
- Capillatus
- Castellanus
- Cataractagenitus
- Cauda (Tail cloud)
- Cavum (Fallstreak hole)
- Congestus
- Contrail (homogenitus)
- Duplicatus
- Diamond dust
- Distrail
- Fibratus
- Flammagenitus (Pyrocumulus)
- Floccus
- Fluctus (Kelvin-Helmholtz)
- Fractus
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- Intortus
- Lacunosus
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- Morning Glory Cloud
- Murus (Wall cloud)
- Mediocris
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- Noctilucent
- Pannus
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- Pileus
- Praecipitatio
- Radiatus
- Silvagenitus
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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
Sunset over Nagara River, Fukuoka City, Japan
Remnants of contrails framing the moon in the afternoon sky, spotted prior to sunset over Carson, California, US
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A plethora of contrails spotted near Munich, Bavaria, Germany
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A face in the clouds, spotted on the way to a music event near Santa Fe, New Mexico, US
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A contrail slicing through the sky over Winthrop, Washington, US
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Remnants of contrails spotted over Brecksville, Ohio, US
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Moon Dogs, also known as paraselenae, a rare optical phenomenon, spotted along with a 22-degree lunar halo over Sumirago, Varese, Italy
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A variety of clouds spotted over Micco, Florida, US
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Remnants of contrails spotted over Lake Stevens, Washington, US
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A walk along the beach at sunrise, near Boca Raton, Florida, US
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A plethora of contrails spotted by Alexia's friend, Ted Burrowes, near Lexington, Virginia, US
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Remnants of a contrail spotted over Davidson Mill Pond Park, New Jersey, US
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A vivid and colourful sky at sunset near Conwy, looking towards Ynys Mon, Wales
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Remnants of contrails populate the sky, headed towards the horizon near Lexington, Massachusetts, US
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Subtle crepuscular rays and shadows spotted over Mengelrode, Germany
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The shadow of the plane's contrail guiding the way for it's flight over eastern Arizona, US
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