Published On: Mon, Aug 31st, 2015

Entranced by a Transit – Cassini Views Dione as it Crosses a Face of Saturn

The Cassini Spacecraft views a moon Dione as it transits Saturn.

Saturn’s moon Dione crosses a face of a hulk world in this view, a materialisation astronomers call a transit. Transits play an critical purpose in astronomy and can be used to investigate a orbits of planets and their atmospheres, both in a solar complement and in others.

By delicately timing and watching transits in a Saturn system, like that of Dione (698 miles or 1123 kilometers across), scientists can some-more precisely establish a orbital parameters of Saturn’s moons.

This perspective looks toward a unilluminated side of a rings from about 0.3 degrees next a ring plane. The picture was taken in manifest immature light with a Cassini booster narrow-angle camera on May 21, 2015.

The perspective was acquired during a stretch of approximately 1.4 million miles (2.3 million kilometers) from Saturn and during a Sun-Saturn-spacecraft, or phase, angle of 119 degrees. Image scale is 9 miles (14 kilometers) per pixel.

Credit: NASA/JPL-Caltech/Space Science Institute

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