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Photo Journal: Northern beauty

A rainbow arches over central Nagoya around noon on Dec. 11, 2017. Midday rainbows are a seasonal phenomenon, appearing only around the winter solstice. Rainbows are sunlight refracted through airborne water droplets, often after a rainfall, producing a distinctive seven-color band. However, the sun must be low in the sky, so rainbows usually appear in the west in the morning, or in the east in the late afternoon. However, with the shortest day of the year approaching, the sun is low in the sky all day, allowing for prime rainbow viewing in the northern sky even at around noon. (Mainichi)

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