titan saturn's moon facts
Titan Moon Facts. Titan is the Saturnâs largest moon and is the second largest moon in our solar system. If it were not orbiting Saturn, Titan could be considered a planet as it is larger than Mercury. Titan is covered with a thick atmosphere that some consider to be similar to that of early Earth.
Titan, at 5,150 km diameter, is the second largest moon in the Solar System and Saturn's largest. Out of all the large moons, Titan is the only one with a dense (surface pressure of 1.5 atm), cold atmosphere, primarily made of nitrogen with a small fraction of methane.