The data are consistent with a Ganymede-centred magnetic dipole tilted by ∼10° relative to the spin axis, and an equatorial surface-field strength of ∼750 nT. The magnetic field is strong enough to carve out a magnetosphere with clearly defined boundaries within Jupiter’s magnetosphere.
How strong is Jupiter’s magnetic field?
Some 20,000 times stronger than Earth’s magnetic field, Jupiter’s magnetic field creates a magnetosphere so large it begins to avert the solar wind almost 3 million kilometers before it reaches Jupiter.
Does Ganymede have a magnetic field?
Ganymede is the largest moon in our solar system and the only moon with its own magnetic field.
What is the gravity on Ganymede compared to Earth?
For one, as Jupiter’s largest moon, Ganymede has a gravitational force of 1.428 m/s2 (the equivalent of 0.146 g) which is comparable to Earth’s Moon.
Why is Jupiter’s magnetic field so strong?
Jupiter’s outer core is also thought to be responsible for its enormous magnetic field, though it is liquid hydrogen crushed by intense pressure into a metallic form that generates the magnetism rather than iron compounds.
Why is Jupiter so radioactive?
Jupiter is surrounded by an enormous magnetic field called the magnetosphere, which has a million times the volume of Earth’s magnetosphere. Charged particles are trapped in the magnetosphere and form intense radiation belts.
Does Venus have a magnetic field?
Venus is a rarity among planets – a world that does not internally generate a magnetic field. Despite the absence of a large protective magnetosphere, the near-Venus environment does exhibit a number of similarities with planets such as Earth.
Can we breathe on Ganymede?
In 1996, astronomers using the Hubble Space Telescope found evidence of a thin oxygen atmosphere. However, it is too thin to support life as we know it; it is unlikely that any living organisms inhabit Ganymede. … Ganymede’s magnetosphere is entirely embedded within the magnetosphere of Jupiter.
Do any moons have magnetic fields?
Our Moon lacks a magnetic field, which implies its interior is cold and inactive. However, rocks from the Moon show permanent magnetism, suggesting that at one time the Moon had a magnetic field. The physics of planetary magnetic fields still contains many mysteries for scientists.
Is Ganymede visible from Earth?
Ganymede is the brightest moon, magnitude 5.3, but it never strays more than 5′ from Jupiter. Callisto, magnitude 6.5, enhances Ganymede’s brightness to just 5.0 (combined). … So I doubt Ganymede can ever be seen with the naked eye, with or without Callisto’s help.
Is Ganymede a God?
Ganymede is a figure who appears in tales of Greek mythology; Ganymede was not a god of the Greek pantheon, but was a mortal. Ganymede though, was not a hero, nor a king, as is the case of most famous mortals in Greek mythology, but Ganymede was a prince who found favour with the god Zeus because of his beauty.
Can humans survive on Europa?
Europa has a thin oxygen atmosphere, but it is far too tenuous for humans to breathe. From the surface of Europa, Jupiter appears 24 times larger than the moon appears in our sky. Europa’s magnetic field shields its surface from Jupiter’s deadly radiation.
Can you survive on Titan?
People living on Titan could walk around (or, rather, bounce around — since the gravity is 14 percent of Earth’s gravity, just a little less than at the moon) wearing suits to keep warm. … Because it’s so cold on Titan, all the water is frozen — the lakes and seas are composed of liquid methane and ethane.
Do planets give off radiation?
Unlike stars, planets do not experience nuclear fusion, the process of combining tiny particles called atoms to release energy. Nuclear fusion creates radiation (heat and light) and makes stars glow. Because planets do not have nuclear fusion, they do not produce their own light.
Do all planets have magnetic fields?
No, not all planets have magnetic fields. The four gas giants have extremely strong magnetic fields, Earth has a moderately strong magnetic field, Mercury has an extremely weak field, but Venus and Mars have almost no measurable fields.
Does Jupiter’s magnetic field affect Earth?
It is estimated that Jupiter’s magnetic field is about 20,000 times stronger than Earth’s. Magnetic fields are produced by what are known as dynamos – an electric current created from the convection motion of a planet’s interior. Earth’s magnetic field is generated by its circulating core of molten iron and nickel.