Planet
Jupiter
Gas giant
King of the planets
Jupiter is more than twice as massive as all other planets combined. Its banded clouds of ammonia and the Great Red Spot — a storm larger than Earth — are visible in small telescopes, along with its four Galilean moons.
In your sky
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Key facts
Distance
5.20 AU from the Sun (mean)
Diameter
139,820 km
Orbital period
11.86 years
Day length
9 h 56 min
Moons
95 confirmed
Did you know
- It has the shortest day of any planet.
- Its magnetic field is about 20,000 times stronger than Earth's.
- Galileo's discovery of its moons in 1610 helped overturn the Earth-centred model.
