Image: Tethys dwarfed by Saturn

Image: Tethys dwarfed by Saturn
Credit: NASA/JPL-Caltech/Space Science Institute

It is easy to forget just how large Saturn is, at around 10 times the diameter of Earth. And with a diameter of about 72,400 miles (116,500 kilometers), the planet simply dwarfs its retinue of moons. One of those satellites, Tethys (660 miles or 1,062 kilometers across), is seen here at lower right.

This view looks toward the sunlit side of the rings from about 8 degrees above the . The image was taken with the Cassini spacecraft wide-angle camera on March 7, 2015 using a spectral filter that preferentially admits wavelengths of near-infrared light centered at 752 nanometers.

Tethys has been brightened by a factor of 2 to increase its visibility.

The view was acquired at a distance of approximately 1.6 million miles (2.6 million kilometers) from Saturn. Image scale is 10 miles (16 kilometers) per pixel. Tethys is slightly closer at 1.5 million miles (2.4 million kilometers) away, for an image scale of 9 miles (14 kilometers) per pixel.


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Three Saturnian moons in one image

More information: For more information about the Cassini-Huygens mission visit saturn.jpl.nasa.gov or www.nasa.gov/cassini .
Provided by NASA
Citation: Image: Tethys dwarfed by Saturn (2016, January 13) retrieved 17 October 2019 from https://phys.org/news/2016-01-image-tethys-dwarfed-saturn.html
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