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Antares, through the Rings (MULTISPECTRUM; credits: Lunexit)
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Cpation NASA:"A point of light flickers behind Saturn's Rings as multiple instruments on the Cassini Spacecraft observe a stellar occultation of Antares (or alpha Scorpii).
Such observations are designed to understand the fine-scale structure of the Rings. Scientists look at variations in the observed brightness of the star (whose actual brightness is well known) to determine the opacity of the Rings in different places.
Among other things, Cassini's prior stellar occultations have been used to examine density and bending waves induced in the A-Ring by Saturn's various moons.
This view looks toward the unilluminated side of the Rings from about 34° above the Ring-Plane.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Jan. 3, 2008. The view was obtained at a distance of approx. 541.000 Km (such as about 336.000 miles) from Saturn.
Image scale is about 4 Km (a little less than 3 miles) per pixel".
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