Phases of Rhea

Filed under pretty pictures, Saturn's moons, Rhea, Cassini

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The angle from the Sun, to a moon, to the observer is called "phase angle." This montage shows Saturn's moon Rhea as seen by Cassini through a clear filter at a variety of phase angles. The images have been resized to a constant pixel scale and rotated so that the terminator is up-and-down; the images sample a variety of latitudes and longitudes.

NASA / JPL / SSI / montage by Emily Lakdawalla

Copyright holder: Emily Lakdawalla

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
Contact us to request publication permission from the copyright holder. Original image data dated on or about October 27, 2009