Ok, so let me try answering your question. 34 comments. First, the viewer is looking toward the sunthe center of a tertiary rainbow is not the antisolar point, it's the sun itself. For the much rarer reflected-light rainbows shown in this spectacular photo, a large glassy-smooth water surface is required behind the observer. A rainbow is a multicolored arc made by light striking water droplets. The Rights Holder for media is the person or group credited. If k>1, then B