Rainbow of the Night

MoonbowA moonbow (also known as a lunar rainbow or white rainbow) is a rainbow produced by the moon rather than the sun. Moonbows are relatively faint, due to the smaller amount of light from the Moon. They are always in the opposite part of the sky from the moon.

It is difficult to discern colours in a moonbow because the light is usually too faint to excite the cone colour receptors in our eyes. As a result, they often appear to be white. However, the colours in a moonbow do appear in long exposure photographs.

Source: Wikipedia
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