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2. Rainbow - Wikipedia

   en.wikipedia.org/wiki/Rainbow

   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.

3. Moonbow - Wikipedia

   en.wikipedia.org/wiki/Moonbow

   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 ...

4. Sun dog - Wikipedia

   en.wikipedia.org/wiki/Sun_dog

   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 ...

5. Rainbows in culture - Wikipedia

   en.wikipedia.org/wiki/Rainbows_in_culture

   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 ...

6. Circumhorizontal arc - Wikipedia

   en.wikipedia.org/wiki/Circumhorizontal_arc

   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.

7. Circumzenithal arc - Wikipedia

   en.wikipedia.org/wiki/Circumzenithal_arc

   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.

8. Perfect rainbow circle forms over Niagara Falls - AOL

   www.aol.com/news/perfect-rainbow-circle-forms...

   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 ...

9. Glory (optical phenomenon) - Wikipedia

   en.wikipedia.org/wiki/Glory_(optical_phenomenon)

   Glory around the shadow of a plane. The position of the glory's centre shows that the observer was in front of the wings. A glory is an optical phenomenon, resembling an iconic saint 's halo around the shadow of the observer's head, caused by sunlight or (more rarely) moonlight interacting with the tiny water droplets that comprise mist or clouds.