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Two sun dogs often flank the Sun within a 22° halo. The sun dog is a member of the family of halos caused by the refraction of sunlight by ice crystals in the atmosphere. Sun dogs typically appear as a pair of subtly colored patches of light, around 22° to the left and right of the Sun, and at the same altitude above the horizon as the Sun ...
While mostly known and often quoted for being the oldest color depiction of the city of Stockholm, Vädersolstavlan (Swedish; "The Sundog Painting", literally "The Weather Sun Painting") is arguably also one of the oldest known depictions of a halo display, including a pair of sun dogs. For two hours in the morning of 20 April 1535, the skies ...
Many people have seen a rainbow arch across the sky, creating a ribbon of colors as rain falls nearby, but few have seen two at once. Rainbows appear when sunlight is reflected by raindrops ...
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.
Finally, the colours of a circumhorizon arc are pure and spectral (more so than in a rainbow), while the colours in cloud iridescence have a more washed-out, "mother of pearl" appearance. Confusion with other members of the halo family, such as sun dogs or the circumzenithal arc , may also arise, but these are easily dismissed by their entirely ...
A rainbow spans a continuous spectrum of colors; the distinct bands (including the number of bands) are an artifact of human color vision, and no banding of any type is seen in a black-and-white photograph of a rainbow (only a smooth gradation of intensity to a maxima, then fading to a minima at the other side of the arc).
One of the newer seasonal fast-food items on this list, the fish sandwich from Popeyes made its debut in 2021, which makes it downright spry compared to the Shamrock Shake. The Cajun flounder ...
Iridescent clouds are a diffraction phenomenon caused by small water droplets or small ice crystals individually scattering light.Larger ice crystals do not produce iridescence, but can cause halos, a different phenomenon.