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.
|Statistic Name||Statistic Calculation|
|Moons||67 (17 of which are nameless)|
|Atmosphere||Mainly hydrogen and helium; contains traces of water vapor, ethane, methane, acteylene|
|Length of day||10 hours|
- 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.
|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|