Pink Rainbow

Rainbows exhibit the colors we’re all familiar with when they’re not at their highest position in the sky. As the Sun sets, rainbows arch higher and higher without much of change in color. However, once the Sun dips below the horizon, the increased path length of sunlight alters a rainbow’s appearance.   Image credit: Phil Thomson; Phil’s Web site

Suddenly, the pure greens and blues are missing and, if conditions are right, just a monochromatic strip is all that can be seen. Such conditions existed on the evening of July 30, 2011 over Corio Bay, Australia where this nearly vertical pink bow was captured suspended high in the sky following a rainstorm late in the day.   Summary Authors: Phil Thomson; Jim Foster



Corio Bay, Australia world map

via EPOD