Technology

How many moons does Jupiter have?

JUPITER is by far the largest planet in our solar system. In fact, it’s 2.5 times the combined mass of all the other planets put together.

So it’s no surprise that the gas giant also has a lot of moons. Here’s all you need to know.

Jupiter has a lot of moons because its huge gravity pulls them into its orbit

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Jupiter has a lot of moons because its huge gravity pulls them into its orbit

How many moons does Jupiter have?

Jupiter has 79 moons, of which 53 are named and 26 are unnamed.

This planet can support a lot of moons because its size and mass give it gravitational stability.

This means that asteroids close to Jupiter are either pulled in and destroyed – or entered orbit.

Jupiter also has magnetic of all the planets in our solar system.

In addition, Jupiter has some moons that orbit in the opposite direction of others, and also in the opposite direction of Jupiter’s rotation.

Some of Jupiter’s moons are very small, about 2km in diameter, such as Pandea, Dia and Ersa.

Many of these were discovered as recently as 2017, using high-tech Earth telescopes.

Others have been found much earlier, such as Pasiphae in 1908 and Lysethea in 1938.

Close-up of Jupiter taken by Nasa's Juno spacecraft

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Close-up of Jupiter taken by Nasa’s Juno spacecraftImage supplier: NASA

What is Jupiter’s largest moon?

Ganymede is the largest moon of Jupiter.

In fact, it is the largest moon in our solar system – larger than Mercury and three-quarters the size of Mars.

It is the only moon in the solar system to have its own magnetic field.

Ganymede is one of the Galilean moons – the four largest moons of Jupiter – discovered by Galileo.

They were the first to be found and also the most scientifically interesting species.

Although Ganymede is as large as Mercury, it is only half the density.

It is the most active body in our solar system, and the only one other than Earth.

A view of Jupiter's moon Europa, created from images taken by NASA's Galileo spacecraft in the late 1990s

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A view of Jupiter’s moon Europa, created from images taken by NASA’s Galileo spacecraft in the late 1990sCredit: Reuters

Europa is one of the brightest moons in our solar system. Its surface is mostly composed of water and ice, and it is thought to be a more habitable planet than Earth.

Callisto is the heaviest object in our solar system.

Which planet has the most moons?

Saturn is the planet with the most moons in our solar system – it has 82 compared to Jupiter’s 79.

Jupiter was the planet with the most moons until 2019, when 20 new moons were found in orbit around Saturn.

These moons have an average diameter of 5 km, and 17 of them orbit Saturn in the opposite direction to its rotation and to the other moons.

Jupiter Drops

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A complete list of all of Jupiter’s moons:

Adraste
Aitne
Amalthea
Ananke
Aoede
Arche
Autonoe
Callirrhoe
Callisto
Carme
Carpo
Chaldene
Cyllene
Dia
Eirene
Elara
Erinome
Ersa
Euanthe
Eukelade
Eupheme
Euporie
Europa
Eurydome
Ganymede
Harpalyke
Hegemon
He enjoys
Hermippe
Herse
Himalia
Io
Iocaste
Isonoe
Jupiter LI
Jupiter LII
Kale
Kallichore
Kalyke
Kore
Leda
Lysethea
Megaclyte
Metis
Mneme
Orthosie
Pandia
Pasiphae
Pasithee
Philophrosyne
Praxidike
S / 2003 J10 12 16 18 19 2 4 23 9
S / 2011 J1 and 2
S / 2016 J1 and 2 (Valetudo)
S / 2017 J1 2 3 5 6 7 8 9
Sinope
Sponde
Taygete
Thebe
Thelxinoe
Themisto
Thyone

https://www.the-sun.com/tech/2427107/jupiter-how-many-moons/ How many moons does Jupiter have?

TaraSubramaniam

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