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Its eight regular moons are grouped into the planet-sized Galilean moons and the far smaller Amalthea group. They were named after lovers of Zeus, the Greek equivalent of Jupiter. Among them is Ganymede, the largest and most massive moon in the Solar System. Its 87 known irregular moons are organized into two categories: prograde and retrograde.
Titan, at 5,149 km diameter, is the second largest moon in the Solar System and Saturn's largest. [ 68 ] [ 44 ] 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 . [ 69 ]
Moons of the Solar System (The Planetary Society, as of March 2009) The JPL's Solar System Dynamics page "How Many Solar System Bodies". NASA/JPL Solar System Dynamics; Planetary Names: Planet and Satellite Names and Discoverers "Upper size limit for moons explained" Kelly Young. Nature (vol 441, p. 834) 14 June 2006
Moons of the solar system to scale with the Earth. Edit 1 - Titan image replaced with Image:Titan in natural color Cassini.jpg, Triton and Nereid moved down a bit in an attempt to avoid giving the impression that Triton is bowl-shaped Edit 2 - Edit1's changes, plus title changed to address Fg2's comments, lame Earth drawing replaced with Image:The_Earth_seen_from_Apollo_17.jpg Edit 3 - Edit 2 ...
The largest of these five, Titania, is 1,578 km in diameter and the eighth-largest moon in the Solar System, about one-twentieth the mass of the Earth's Moon. The orbits of the regular moons are nearly coplanar with Uranus's equator, which is tilted 97.77° to its orbit. Uranus's irregular moons have elliptical and strongly inclined (mostly ...
Explore Our Solar System's Most Mysterious Moons Popular Mechanics; NASA, Getty Images Around 4.5 billion years ago, our solar system emerged from a violent cloud of gas and dust.
The remaining objects of the Solar System (including the four terrestrial planets, the dwarf planets, moons, asteroids, and comets) together comprise less than 0.002% of the Solar System's total mass. [h] The Sun is composed of roughly 98% hydrogen and helium, [41] as are Jupiter and Saturn.