Headlines > News > Picture Of The Day - Unraveling Saturn's Rings

Picture Of The Day - Unraveling Saturn's Rings

Published by Klaus Schmidt on Wed Aug 12, 2009 2:38 pm via: source
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(NASA) – In this simulated image of Saturn’s rings, color is used to present information about ring particle sizes in different regions based on the measured effects of three radio signals.

Three simultaneous radio signals of 0.94, 3.6 and 13 centimeter wavelength (Ka-, X- and S-bands) were sent from the Cassini spacecraft through the rings to Earth. The observed change of each signal as Cassini moved behind the rings provided a profile of the distribution of ring material as a function of distance from Saturn, or an optical depth profile.

Image Credit: NASA/JPL

Image Credit: NASA/JPL

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