* Astronomy

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RE: Dione

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Bright icy fractures, or linea, cover the trailing hemisphere of Saturn's moon, Dione.

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Credit: NASA/JPL/Space Science Institute

The image was taken with the Cassini spacecraft narrow-angle camera using a spectral filter sensitive to wavelengths of infrared light centred at 930 nanometers. The image was taken on Feb. 3, 2007 at a distance of approximately 927,000 kilometres from Dione. Image scale is 6 kilometres per pixel.

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This image of Dione was taken by the Cassini spaceprobe on February 19, 2007, when it was approximately 1,019,802 kilometres away.

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Credit: NASA/JPL/Space Science Institute

The image was taken using the CL1 and CL2 filters.

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Canyons and mountain peaks snake along the terminator on the crater-covered, icy moon Dione. With the Sun at a low angle on their local horizon, the line of mountain ridges above centre casts shadows toward the east.

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Credit NASA

Sunlit terrain seen here is on the anti-Saturn hemisphere of Dione -- the side that always faces away from Saturn. North is up.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Dec. 15, 2006 at a distance of approximately 299,000 kilometres from Dione and at a Sun-Dione-spacecraft, or phase, angle of 81 degrees. Image scale is 2 kilometres per pixel.

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Map of Dione

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RE: Dione

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Craters of all sizes litter the landscape on Dione. The larger craters in this view display prominent central peaks.
The image looks down onto northern latitudes on Dione. Lit terrain seen here is on the moon's anti-Saturn side.

NASA/JPL/Space Science Institute

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Oct. 12, 2006 at a distance of approximately 1 million kilometres from Dione and at a Sun-Dione-spacecraft, or phase, angle of 94 degrees. Image scale is 6 kilometres per pixel.

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Lit terrain in this view is on the Saturn-facing hemisphere of Dione. North is up and rotated eight degrees to the left.

Credit NASA

The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Sept. 25, 2006 at a distance of approximately 677,000 kilometres from Dione and at a Sun-Dione-spacecraft, or phase, angle of 62 degrees. Image scale is 4 kilometres per pixel.

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This image shows Dione's tortured complex of bright cliffs. At lower right is the feature called Cassandra, exhibiting linear rays extending in multiple directions.
The trailing hemisphere of Dione (1,126 kilometres across) is seen here. North is up.

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Credit NASA/JPL

The image was taken in polarised green light with the Cassini spacecraft narrow-angle camera on July 24, 2006 at a distance of approximately 263,000 kilometres from Dione. Image scale is 2 kilometres per pixel.

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This image of Dione was taken on August 16, 2006 by the Cassini space probe when it was approximately 155,433 kilometres away.

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The image was taken using the CL1 and CL2 filters.