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How does Titan’s size compare with the planet Mercury?
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Titan
Titan, moon of Saturn, photographed by Voyager 2 on August 25, 1981, at a distance of 907,000 km (564,000 miles). Green and violet images were combined to make this photograph, which shows the extended atmosphere of the satellite.
In terms of physical size, Titan—the largest moon of Saturn—is actually larger than the planet Mercury.123
While Mercury is classified as a major planet, it is the smallest in the solar system, with a mean radius of approximately 2,439.7 km. Titan, despite being a moon, has a solid body diameter of 5,150 km (3,200 miles), making it larger than Mercury and the second-largest moon in the solar system. Because of its significant size and the presence of a dense atmosphere, Titan is often noted for resembling a planet more than a typical moon.4352