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Jupiter
Jupiter by Cassini-Huygens
Adjective(s) Jovian
Orbital properties
Aphelion/apoapsis 816 520 800 km (about 5,458 AU)
Perihelion/periapsis 740 573 600 km (about 4,950 AU)
Semi-major axis 778 547 200 km (about 5,204 AU)
Orbital eccentricity 0.0487
Orbital period 1 year (4 332,59 days)
Average orbital speed 13,07 km/s
Physical properties
Radius 71 492 km (equatorial), 66 854 (polar)
Mass 1,8986 x 10^27 kg (317,8 earth masses)
Mean density 1,326 g/cm³
Escape velocity 59,5 km/s
Rotation period 0,4135 day (9 hours, 55 minutes, 30 seconds)
Average surface temperature 104.12 degrees Kelvin ( -169.03 °C)
Apparent magnitude -1.6 (minimum), -2.94 (maximum)
Moons 67

Jupiter is the largest Planet in our solar system. It's equator is 88,846 miles around. Although Tyche could be larger.


HistoryEdit

Jupiter was first discovered thousands of years ago. It was named after the Roman god Jupiter. Galileo discovered Jupiters 4 largest moons in 1610. Voyager 1 and 2 few past it in 1979 and they took close up pictures. These pictures discovered dozens of small moons.

Quick statisticsEdit

Statistic Name Statistic Calculation
Moons 67 (17 of which are nameless)
Atmosphere Mainly hydrogen and helium; contains traces of water vapor, ethane, methane, acteylene
Density 1.33 g/cm
Length of day 10 hours

GalleryEdit

TriviaEdit

  • Jupiter is a gas giant, a planet made entirely out of gasses and liquids.
  • Jupiter has 67 known moons as of March 2012.
  • Jupiter's largest moons are Callisto, Io, Europa, and Ganymede. They were discovered by Galileo in 1610.
  • Jupiter's Great Red Spot is actually a gigantic storm on Jupiter.
  • Its day lasts only 10 hours, making it have the shortest day of all the planets.
  • Pioneer 10 was the first spacecraft to visit Jupiter, followed by Pioneer 11, Voyager 1, Voyager 2, Ulysses, Galileo, and finally New Horizens in 2007.
  • The comet Shoemaker-Levy 9 crashed into Jupiter in 1994, leaving long lasting effects to it's atmosphere.
  • Jupiter's year lasts 12 Earth years.
  • Jupiter is made up of 15 percent helium and 84 percent hydrogen. Water vapor, ammonia, ethane, methane, and acteylene also make up part of Jupiters atmosphere.
  • Jupiter has four rings: The Halo Ring, Main Ring, Amalthea Gossamer Ring, and Thebe Gossmer Ring. It was the third planet discovered to have rings, after Saturn and Uranus.
Jovian Moons
Metis - Adrastea - Amalthea - Thebe - Io - Europa - Ganymede - Callisto - Themisto - Leda - Himalia - Lysithea - Elara - Dia - Carpo - S/2003 J 12 - Euporie S/2003 J 3 - S/2003 J 18 - S/2011 J 1 - S/2010 J 2 - Thelxinoe - Euanthe - Helike - Orthosie Iocaste - S/2003 J 16 - Praxidike - Harpalyke - Mneme - Hermippe - Thyone - Ananke - Herse - Aitne - Kale - Taygete - S/2003 J 19 - Chaldene - S/2003 J 15 - S/2003 J 10 - S/2003 J 23 - Erinome - Aoede - Kallichore - Kalyke - Carme - Callirrhoe - Eurydome - S/2011 J 2 - Pasithee S/2010 J 1 - Kore - Cyllene - Eukelade - S/2003 J 4 - Pasiphaë - Hegemone - Arche - Isonoe - S/2003 J 9 - S/2005 J 5 - Sinope - Sponde - Autonoe Megaclite - S/2003 J 2

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