In Daylight on the Night Side

NASA's Cassini spacecraft looks down at the rings of Saturn from above the planet's nightside. The darkened globe of Saturn is seen here at lower right, along with the shadow it casts across the rings. The image shows that even on the planet's night side, the rings remain in sunlight, apart from the portion that lies within Saturn's shadow. The rings also reflect sunlight back onto the night side of the planet, making it appear brighter than it would otherwise appear. Saturn's small moon Prometheus (53 miles or 86 kilometers across) is faintly visible as a speck near upper left. The shadow of Saturn was once long enough to stretch to the orbit of Prometheus. But as northern summer solstice approaches, Saturn's shadow no longer reaches that far (see PIA20498). So Prometheus will not move into the darkness of the planet's shadow until the march of the seasons again causes the shadow to lengthen. This view looks toward the sunlit side of the rings from about 41 degrees above the ring plane. The image was taken in visible light with the Cassini spacecraft wide-angle camera on Aug. 14, 2016. The view was obtained at a distance of approximately 870,000 miles (1.4 million kilometers) from

Date

2016-10-10

Photographer / author

NASA/JPL-Caltech/Space Science Institute

Collection

JPL

Archive

NASA Image and Video Library

Type

photograph

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