What is another name for a rainbow?

A moonbow (also known as a lunar rainbow or white rainbow) is a rainbow that occurs at night. Moonbows are relatively faint, due to the smaller amount of light from the Moon. As with rainbows, they are always in the opposite part of the sky from the moon. It is difficult to discern colors in a moonbow because the light is usually too faint to excite the cone color receptors in our eyes. However, the colors appear in long exposure photographs. A colored circle around the moon is not a moonbow - it is usually a 22