Jupiter -- the 5th planet

Jupiter - The 5th Planet

Facts & Figures

The Planet Jupiter as imaged by The Hubble Space Telescope

Jupiter reigns supreme among our nine planets, containing two-thirds of the planetary mass of the solar system. In composition it resembles a small star. Its interior pressure may reach 100 million times the pressure on Earth's surface. Jupiter's magnetic field is immense, even in proportion to the size of the planet, stretching millions of miles into the solar system. Electrical activity in Jupiter is so strong that it pours billions of watts into Earth's own magnetic field every day.

Jupiter is endowed with 16 moons, a ring system, and an immense, complex atmosphere. Its atmosphere bristles with lightning and swirls with huge storm systems, including the Great Red Spot, a storm that has persisted for at least 100 years, perhaps as long as 300 years. Some scientists theorize that beneath the atmosphere there is no solid mass at the center of Jupiter, but that the planet's unique temperature and pressure conditions sustain a core whose density is more like liquid or slush.

	Max	Min
Angular Size
Brightness	-2.9	-2.0
Distance from Earth	6.47 AU	3.93 AU
Distance from Sun	5.45 AU	4.95 AU
Temperature	increases with depth	-163C

Mass	1.9 x 10²⁷kg (317.94 x Earth)
Size	142984 km @ Equator (11.209 x Earth)
Orbital Period	11.86 years

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