True Colors, Deceptive Sizes Posted on 17 October, 2012 by wjjhoge Saturn’s moon Dione is in the foreground of this true color picture taken by the Cassini spacecraft. Thus, it appears larger than Titan. In reality, Titan has a diameter of about 5150 km, and Dione’s diameter is around 1120 km. Image Credit: NASA Share this:TwitterLinkedInEmailPrintFacebookLike this:Like Loading... Related