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Formed in the same way as the daytime bow, the light from the Moon cannot match the brilliance of the solar disk so a moon rainbow is but a pale relative of its daytime counterpart. While sometimes we can see some colour, the moon rainbow normally appears whitish; the colours are just too faint to distinguish properly except with a time-exposure photograph. It is because of this faintness that we normally only see a moon rainbow near time of Full Moon.