Cassini Observations on July 26/27 2015

On July 26th and 27th, 2015, NASA‘s Cassini spacecraft made observations of Saturn’s icy moons Dione, Rhea, and Enceladus. Cassini’s ISS (imaging science subsystem camera) took images using clear, infrared, green, and ultraviolet light, among a couple others. The resulting images have been assembled from the raw uncalibrated data returned to Earth and appear in an “expanded” spectrum due to the use of infrared and ultraviolet. These moons would not appear as vibrant to the human eye.

All images credit: NASA/JPL/Space Science Institute, Assembled by Kevin M. Gill

Crescent Dione, trailing hemisphere, from a distance of 65,000 kilometers (40,000 miles)

Crescent Dione, trailing hemisphere, from a distance of 65,000 kilometers (40,000 miles)

 

Half-phase Dione, trailing hemisphere, from a distance of 65,000 kilometers (40,000 miles)

Half-phase Dione, trailing hemisphere, from a distance of 65,000 kilometers (40,000 miles)

Enceladus' trailing hemisphere from a distance of 111,420 kilometers (69,230 miles)

Enceladus’ trailing hemisphere from a distance of 111,420 kilometers (69,230 miles)

Rhea's leading hemisphere from a distance of 300,000 kilometers (186,000 miles)

Rhea’s leading hemisphere from a distance of 300,000 kilometers (186,000 miles)

 

 

 

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