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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.
Moonbow. A moonbow (also known as a moon rainbow or lunar rainbow) is a rainbow produced by moonlight rather than direct sunlight. Other than the difference in the light source, its formation is the same as for a solar rainbow: It is caused by the refraction of light in many water droplets, such as a rain shower or a waterfall, and is always ...
A sun dog (or sundog) or mock sun, also called a parhelion[ 1] (plural parhelia) in atmospheric science, is an atmospheric optical phenomenon that consists of a bright spot to one or both sides of the Sun. 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 ...
The rainbow has found a place in the mythological systems of many cultures. It is sometimes personified as a deity, such as the Greco-Roman messenger goddess Iris, or the Aboriginal Australian Rainbow Serpent . In Albanian folk beliefs the rainbow is regarded as the belt of the goddess Prende, and oral legend has it that anyone who jumps over ...
Circumhorizontal arc over the Nepalese Himalaya A circumhorizontal arc (bottom) in relation to a circumscribed halo (top), Oregon.. A circumhorizontal arc is an optical phenomenon that belongs to the family of ice halos formed by the refraction of sunlight or moonlight in plate-shaped ice crystals suspended in the atmosphere, typically in actual cirrus or cirrostratus clouds.
Fog bow. A fog bow, sometimes called a white rainbow, [ 1] is a similar phenomenon to a rainbow; however, as its name suggests, it appears as a bow in fog rather than rain. [ 2] Because of the very small size of water droplets that cause fog—smaller than 0.05 millimeters (0.0020 in)—the fog bow has only very weak colors, with a red outer ...
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.
If you need to take a moment to brighten your day, take a peek at this amazing circle rainbow that formed over Niagara Falls. Honestly, you have to see it to believe it. The gorgeous sight was ...
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