NASAのインスタグラム(nasa) - 10月19日 06時11分

Stuck on the Rings: Like a drop of dew hanging on a leaf, Saturn's moon Tethys appears to be stuck to the planet's A and F rings from this perspective. Tethys (660 miles, or 1,062 kilometers across), like the ring particles, is composed primarily of ice. The gap in the A ring through which Tethys is visible is the Keeler gap, which is kept clear by the small moon Daphnis (not visible here). This view looks toward the Saturn-facing hemisphere of Tethys. North on Tethys is up and rotated 43 degrees to the right. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on July 14, 2014.

Credit: NASA/JPL-Caltech/Space Science Institute

#nasa #space #cassini #rings #saturn #planets #solarsystem #ice #science
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