Jupiter: Difference between revisions
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Revision as of 01:53, February 15, 2017
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There is more information available on this subject at Jupiter on the English Wikipedia. |
| Jupiter | |
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| File:Jupiter.jpg | |
| Astrographical | |
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System: |
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Orbiting: |
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Orbital position: |
Fifth planet |
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Moon(s): |
67; Jovian moons |
| Physical | |
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Diameter: |
139,822 kilometres (86,881 mi) |
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Gravity: |
2.64 G |
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Length of day: |
9 hours, 56 minutes |
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Length of year: |
12 years |
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Atmosphere: |
Various gases |
| Societal | |
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Demonym: |
Jovian |
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Government: |
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Jupiter is a gas giant and the largest planet in the Sol system.
History
Early history
Jupiter has been known since ancient times, however its four major moons, also known as Galilean moons, were only discovered in 1610 by Galileo. In 1892, a fifth moon of Jupiter was discovered, but smaller than the four others. Humans first sent spacecraft in late 1973, known as the Pioneer 10. Other spacecraft soon followed, thus discovering more moons and increasing the understanding of the gas giant. Jupiter has rings that are much fainter than those of Saturn's, which were discovered years later after the visit of the first spacecraft.
Humans began colonizing Jupiter's moons in 2080.[1][2] The planet itself was settled by gas mining operations and industrial habitats.[3]
Jovian Moons Campaign
- Main article: Jovian Moons Campaign
In 2160, the Frieden secessionist movement attacked the UN Colonial Advisors stationed on Io. The attack led to the Jovian Moons Campaign, which was one of the conflicts that culminated in the Interplanetary War.[4]
Human-Covenant War
During the Human-Covenant War, Jupiter was once again a location of particular importance.[5] On October 20, 2552, the High Prophet of Regret's Fleet of Sacred Consecration exited slipstream space relatively close to Jupiter.[6] Io Station detected the Covenant fleet of fifteen ships and reported the discovery to Fleet Admiral Lord Terrence Hood a few moments before the Battle of Earth.[7]
Later, around November 8, 2552, the Forerunner Dreadnought and the High Prophet of Truth's fleet passed Jupiter while on their way to Earth.[8] Following the Covenant's invasion of the Sol system, most Jovian colonies survived the Covenant assault largely unscathed.[9]
Description
Jupiter is a large gas giant and the fifth planet in orbit in the Sol system. With a diameter of 139,822 kilometres (86,881 miles), Jupiter is the largest planet in the system. Located between Jupiter and Mars, a large asteroid belt is held in place by the gas giant's strong gravitational forces. The upper atmosphere of Jupiter is largely composed of hydrogen gas, while helium gas makes up about 10%. The gas giant's atmosphere additionally contains small amounts of methane, ammonia, water, ethane, hydrogen deuteride, and carbon. Jupiter is home to the Great Red Spot, a persistent anticyclonic storm located near the planet's equator. The winds of Jupiter blow at a speeds of 430 to 680 kilometers per hour. Human scientists have studied Jupiter's winds to learn about the formation of storms. The gas giant's intense radiation, planetary ring system, and its orbital path have also been analyzed by scientists to help them explain other mysteries in the galaxy.[10]
Jupiter is orbited by sixty-seven natural satellites, referred to as the the Jovian moons. At least four—the Galilean moons composed of Europa, Ganymede, Io, and Callisto—have been colonized by humanity.[11] Unlike the moons of the other three gas giants in the Sol system, they have largely been explored and receive comparatively more heat from Sol. Due to these factors, the moons of Jupiter are favored over those of the other gas giants.[10]
Gallery
The scale size of Jupiter and its moons
A Covenant battle group and the Forerunner Dreadnought seen in the proximity of Jupiter
Io Station and Io orbiting Jupiter
A Covenant fleet over Jupiter
List of appearances
- Halo 2 (First mentioned)
- Halo: Uprising (First appearance)
- Halo: Contact Harvest (Mentioned only)
- Halo: Evolutions - Essential Tales of the Halo Universe
- The Impossible Life and the Possible Death of Preston J. Cole (Mentioned only)
- Halo 2: Anniversary (Mentioned only)
- Halo Mythos: A Guide to the Story of Halo
Sources
- ^ Halo Encyclopedia, page 32
- ^ Halo: Contact Harvest, page 37
- ^ Halo Mythos, page 50
- ^ halo.bungie.org: Halo Story Timeline
- ^ Halo: The Fall of Reach
- ^ Halo 2: Anniversary, Terminal 15
- ^ Halo 2, campaign level Cairo Station
- ^ Halo: Uprising, Issue #1
- ^ Halo Waypoint: Humans
- ^ a b Halo Encyclopedia, page 295 (2011 edition)
- ^ Xbox.com/Halo
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