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Emily LakdawallaApril 12, 2010

Dione and Titan

Welcome to all of you who are coming in from NASA's Astronomy Picture of the Day! I hope you'll stick around to read more about the robotic exploration of our solar system.

It's axiomatic that as soon as I post about pretty Cassini pictures, another set of pretty photos will appear on the raw images website. This one is part of a series showing Dione passing in front of Titan. I always enjoy the contrast in brightness and sharpness between any of the icy moons and Titan's dim, fuzzy blob.

Dione and Titan

NASA / JPL / color composite by Emily Lakdawalla

Dione and Titan
Dione passes in front of Titan in this Cassini color composite from April 10, 2010.

Want to learn how to make your own color composites of Cassini images? Check out my space imaging tutorials. I also recently wrote a much more detailed post on the challenge of making color composites from Cassini images of multiple moons.

Read more: Dione, pretty pictures, Cassini, Titan, amateur image processing, Saturn's moons, many worlds

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Emily Lakdawalla

Senior Editor and Planetary Evangelist for The Planetary Society
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