Published On: Mon, Feb 1st, 2016

New Cassini Image Shows Methane in Saturn’s Atmosphere

The soft, bright-and-dark bands suggested in this new picture from a Cassini Spacecraft are a signature of methane in Saturn’s atmosphere.

This picture was taken in wavelengths of light that are engrossed by methane on Saturn. Dark areas are regions where light travels deeper into a atmosphere (passing by some-more methane) before reflecting and pinch off of clouds and afterwards streamer behind out of a atmosphere. In such images, a deeper a light goes, a some-more of it gets engrossed by methane, and a darker that partial of Saturn appears.

The moon Dione (698 miles or 1,123 kilometers across) hangs next a rings during right. Shadows of a rings are also manifest here, expel onto a planet’s southern hemisphere, in an different perspective compared to early in Cassini’s goal during Saturn.

This perspective looks toward a unilluminated side of a rings from about 0.3 degrees next a ringplane. The picture was taken with a Cassini booster wide-angle camera on Sep 6, 2015, regulating a bright filter that preferentially admits wavelengths of near-infrared light centered during 728 nanometers.

The perspective was acquired during a stretch of approximately 819,000 miles (1.32 million kilometers) from Saturn. Image scale is 49 miles (79 kilometers) per pixel. Dione has been brightened by a cause of dual to raise the visibility.

Image Credit: NASA/JPL-Caltech/Space Science Institute

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