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Up to date as of February 02, 2010

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Gas Giant
Age: 2-10 billion years
Diameter: 50,000-140,000 km
Location: cold
Surface: gaseous
Atmosphere: Various, often including fluorine, methane and ammonia
Evolution: none

A gas giant is a type of planet which is composed mainly of gases such as fluorine, methane and ammonia. The United Federation of Planets classifies such planets as class J, class 6, class 7, and class 9.

The planets are generally anywhere from 2 billion to 10 billion years old, and have a diameter of 50,000 km to 140,000 km. Often these planets have a solid rocky or metallic core. Gas giants are usually found in the cold zone of an ecosphere of a star system. (Star Trek: Star Charts)

as giants are made up of the same materials found in stars, however they are not large enough to sustain nuclear fusion and become stars. It has been demonstrated that if two gas giants collide, the large mass involved could become dense enough to begin a self-sustaining nuclear reaction - creating a new star in the process. (TNG episode: "Ship in a Bottle")


  • The Bajor system has three gas giants, Bajor IX, Bajor X and Bajor XI. (Star Trek: Deep Space Nine Technical Manual, Star Trek: Star Charts)

External Links

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ST Expanded

Up to date as of February 07, 2010

The Star Trek Expanded Universe Database is for fanon and related content. See for the canon Star Trek wiki.

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Up to date as of February 04, 2010

From Wookieepedia, the Star Wars wiki.

The gas giant Yavin
"The second most common type planet are huge gas giants, with poisonous atmospheres at pressures so great that starships are easily crushed."
New Republic Scout Service Spaceguide

A gas giant was a type of planet that was primarily made up of gaseous layers. Most were made primarily of hydrogen and helium, with some methane; a rare few had oxygen-rich layers within their atmospheres which were capable of supporting a life zone. Gas giants usually had many moons due to their high mass and gravity, and some also possessed spectacular systems of planetary rings. Famous gas giants included Bespin, Endor, Taloraan, and Yavin Prime.

The Galactic Empire had classified gas giants based on a type gas giant that they could be compared to such as Bespin-class gas giants.[1]



This list is incomplete. You can help Wookieepedia by expanding it.
  • Star Wars Knights of the Old Republic 44: The Reaping, Part 2 (Mentioned only)
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  • Star Wars Episode III: Revenge of the Sith
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Non-canon appearances

  • LEGO Star Wars II: The Original Trilogy
  • LEGO Star Wars: The Complete Saga


I find your lack of sources disturbing.

This article needs to be provided with more sources and/or appearances to conform to a higher standard of article quality.

  • Galaxy Guide 8: Scouts
  • Galaxy Guide 2: Yavin and Bespin, Second Edition
  • The Secrets of Star Wars: Shadows of the Empire
  • Star Wars: Jedi Knight: Jedi Academy

Notes and references

External links

This article uses material from the "Gas giant" article on the Starwars wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.


Up to date as of February 05, 2010
(Redirected to Gas Giant article)

From Traveller Wiki - Science-Fiction Adventure in the Far future

A large planet with an extensive atmosphere of hydrogen and hydrogen compounds. Starships fuel themselves by diving into this atmosphere and skimming hydrogen from this atmosphere. Jupiter, in the Terra system, is an example of a gas giant.

Gas giants may have a rocky or metallic core—in fact, such a core is thought to be required for a gas giant to form—but the majority of its mass is in the form of the gaseous hydrogen and helium, with traces of water, methane, ammonia, and other hydrogen compounds. Gas giants do not have a well-defined surface; their atmospheres simply become gradually denser toward the core, perhaps with liquid or liquid-like states in between. Thus, terms such as diameter, surface area, volume, surface temperature and surface density refer only to the outermost layer visible from space.

The Solomani sometimes refer to gas giants as a Jovian planet after the planet Jupiter in their home system.

The third digit of the "PBG" element of the Universal World Profile indicates how many gas giants are present within the star system.

This article was copied or excerpted from the following copyrighted sources and used under license from Far Future Enterprises and by permission of the author.
Supplement 8 Library Data (A-M)
Smallwikipedialogo.png This page uses content from Wikipedia. The original article was at Gas_Giant. The list of authors can be seen in the page history. As with Traveller, the text of Wikipedia is available under the GNU Free Documentation License.

This article uses material from the "Gas Giant" article on the Traveller wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

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