Green Flash on the Tyrrhenian Sea
October 03, 2011
The photo above showing a stunning sunset accented by an emerald capped Sun was captured from near Rome, Italy (Campo Minio) on October 1, 2007. If atmospheric conditions allow, when the solar disk hugs the horizon, separate red, yellow and green "images" of the Sun may be detected as a result of refraction of sunlight (atmospheric dispersion). As the lower and middle rims (yellow and red colors, respectively) dip just below the horizon, the uppermost rim will disappear in a flash of green color. Make sure to protect your eyes when looking toward the Sun.