Is Ganymede a satellite?
a day ago Ganymede, also called Jupiter III, largest of Jupiter's satellites and of all the satellites in the solar system. One of the Galilean moons, it was discovered by the Italian astronomer Galileo in 1610.
What was found on Ganymede?
January 7, 1610 Ganymede/Discovered
Is Ganymede one of Jupiter’s satellites?
Distance from Jupiter: Ganymede is the seventh moon and third Galilean satellite outward from Jupiter, orbiting at about 665,000 miles (1.070 million kilometers). It takes Ganymede about seven Earth-days to orbit Jupiter. … Magnetosphere: Ganymede is the only satellite in the solar system to have a magnetosphere.
What is Ganymede orbiting?
Ganymede completes an orbit around Jupiter about every seven Earth days (7.155). Ganymede orbits the Sun along with Jupiter and its other satellites every 12 Earth years. Ganymede, Io, and Europa are in what is called a resonance – every time Ganymede orbits Jupiter once, Europa orbits twice, and Io orbits four times.
Which way does Ganymede rotate?
Orbit and rotation Like most known moons, Ganymede is tidally locked, with one side always facing toward the planet, hence its day is also seven days and three hours.
Do any other planets have a magnetic field?
Probes found that Mars and Venus do not have a significant magnetic field. Jupiter, Saturn, Uranus, and Neptune all have magnetic fields much stronger than that of the Earth. Jupiter is the champion- having the largest magnetic field. … The planet Uranus has an interesting magnetic field.
Does Io have an atmosphere?
Sulfur dioxide is the primary constituent of a thin atmosphere on Io. It has no water to speak of, unlike the other, colder Galilean moons. Data from the Galileo spacecraft indicates that an iron core may form Io's center, thus giving Io its own magnetic field.
How do we know that Ganymede has water?
Ganymede has a thick crust made of ice. An ocean may lie below that crust, more than 100 miles (160 km) deep. Scientists think Ganymede might be hiding more water under its crust than that found in all of Earth's oceans.