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Rhea emerges after being occulted by the larger moon Titan.
Mutual event observations such as this one, in which one moon passes close to or in front of another, help scientists refine their understanding of the orbits of Saturn's moons. Titan is about 1 million kilometers (621,000 miles) from Cassini in this image. Rhea is about 2.3 million kilometers (1.4 million miles) from Cassin.
The high altitude detached haze layer of Titan's atmosphere is clearly visible in the image. See PIA07774 to learn more.
Lit terrain seen here is on the trailing hemispheres of Titan (5150 kilometers, 3200 miles across) and Rhea (1528 kilometers, 949 miles across). The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Oct. 27, 2009. Image scale is 6 kilometers (4 miles) per pixel on Titan and 14 kilometers (9 miles) per pixel on Rhea.
The Cassini Equinox Mission is a joint United States and European endeavor. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter was designed, developed and assembled at JPL. The imaging team consists of scientists from the US, England, France, and Germany. The imaging operations center and team lead (Dr. C. Porco) are based at the Space Science Institute in Boulder, Colo.