As the sun sets and drops below the western horizon,¬†a shadow cast by the Earth itself rises on the opposite horizon. From the point of view of an observer facing east immediately after sundown, the Earth’s shadow is visible as a dull bluish band along the eastern horizon. Also visible, just above the Earth’s shadow is a second band, pinkish in color. This¬†pinkish band is known as the anti-twilight arch, or, more colorfully, the Belt of Venus. This image was taken in Cochise County, Arizona, at 4,400′ with a clear and open view of the eastern horizon, with a moonrise thrown in for good measure.