Amazing Icy Moons
A scene straight out of science fiction, this fantastic view shows, from left to right, Saturn’s moon’s Mimas, Dione and Rhea, on the far side of Saturn’s nearly edge-on rings.
The trailing hemispheres of all three moons are sunlit here, and wispy markings can be seen on the limbs of both Dione and Rhea. The diameter of Mimas is 397 kilometers (247 miles), Dione is 1,118 kilometers (695 miles) and Rhea is 1,528 kilometers (949 miles).
The image was taken in visible blue light with the Cassini spacecraft narrow-angle camera on March 15, 2005, at a distance of approximately 2.4 million kilometers (1.5 million miles) from Saturn. The image scale is 14 kilometers (9 miles) per pixel.
Dione and Titan (9-17-11) by Lights In The Dark on Flickr.
Via Flickr:
Saturn’s moons Dione and Titan lined up with the planet’s rings, seen here nearly edge-on, from the point of view of the Cassini spacecraft’s camera on September 17, 2011.
This is a composite of three raw images taken with Cassini’s red, green and blue visible-light clear filters.
Dione, 700 miles wide, is dwarfed by the much larger and further moon Titan, which is over 3,200 miles wide and wrapped in a thick opaque atmosphere.
Also in this image is the 12-mile-wide shepherd moon Pan, barely visible within the Encke Gap in the A ring, just below and to the left of Dione.
Cassini was about 1.33 million miles away from Dione when this view was acquired.
Credit: NASA / JPL / SSI. Edited by Jason Major.
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Dione Up Front
Saturn’s moon Dione coasts along in its orbit appearing in front of its parent planet in this Cassini view. The wispy terrain on the trailing hemisphere of Dione (1123 km across) can be seen on the left of the moon here.
The tiny moon Telesto (25 km across) is visible as a white speck above and to the left of the rings in this view. Epimetheus (113 km across) appears just below the rings near the center of the image. The image was taken by the Cassini spacecraft camera on July 18, 2011.