the combined diameter of Mars and its moons is 6,805 kilometers, or 39% larger than Mercury, 56% the size of Venus, 53% the size of the moon, 5% the diameter of Jupiter, 6% the diameter of Saturn, 13% the diameter of Uranus, and 14% the diameter of Neptune.
Ganymede is the largest moon of Jupiter (5262 km diameter) - its just a bit bigger than Mercury (4880km diameter), while Castillo is the second largest moon of Jupiter (diameter is 4820 km), which is just a bit less than Mercury's diameter- almost the same size.
the combined diameter of Saturn and its four largest moons is 129,306 km, or 26 times larger than Mercury, 11 times larger than Venus, 10 times larger than the Earth, 19 times bigger than Mars, 10% smaller than Jupiter, and two and a half times larger than Uranus and Neptune.
Jupiter has 63 moons - with Ganymede being the largest.
Jupiter, the biggest planet in our astonishing solar system. Jupiter has 60+ known moons. But there are four main moons, Io, Europa, Callisto and Ganymede. Io is 3,630 km in diameter and is 421,600 km away from Jupiter. It is very active, and has constant volcanic eruption. Europa is 3,138 km in diameter and is 670,900 km away from Jupiter. Astronomers think that underneath its crust, it may harbor an ocean. Ganymede is 5,262 km in diameter - the largest moon in our Solar System - and is 1,070,000 km away from Jupiter. Also, this moon could potentially harbor an ocean beneath its crust. Callisto is 4,800 km in diameter and is 1,883,800 km away from Jupiter.
they are called moons
Jupiter has 79 known moons, the largest of which is Ganymede.
Ganymede, one of Jupiter's moons, has a diameter of about 5,268 km (3,273 miles), making it the largest moon in the solar system.
Galileo discovered Jupiter's 4 largest moons, the Galilean moons. The largest moon's name is Ganymede.
Galileo was the first to observe the 4 largest moons of Jupiter (which are still known as the Galilean moons, in his honor).
Jupiter has at least 63 known moons. The largest four are called Io, Europa, Ganymede, and Callisto. These four moons are called the Galilean satellites because they were first seen in 1610 by the astronomer Galileo Galilei. Ganymede is the largest moon in the Solar System, with a diameter of 3,260 miles.
Galilean