Yosemite Valley - From Tunnel View. 1/28/11

The belt of Venus (named after the Roman goddess Venus) is a pink to brownish border separating the dark shadow band of the earth from the sky above it. It is best visible when the atmosphere is cloudless just after sunset. The twilight wedge is then rising over the eastern sky and the backscattered red sunlight at the border of the wedge can then be identified as the belt of Venus.