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Dr Who

Up to date as of January 31, 2010

From TARDIS Index File, the free Doctor Who reference.

Wikipedia
Wikipedia has a more detailed and comprehensive article on

Planets were, simply speaking, large spherical masses in space.

Earth as appeared in Earthshock.

Overview

Planets generally orbit stars, but rogue planets (DC: The Rogue Planet) and wandering planetoids were not uncommon. (DW: Revenge of the Cybermen)

There are a number of highly unusual planets in the universe, including Magla, in reality an immense amoeba with a crust-like shell (DW: Destiny of the Daleks), and the artificial planet Arcadia. (NA: Deceit)

Some planets were artificially accelerated through the interference (intentional or not) of other life forms. Normally in these cases large starships provided the initial large mass which began the process of planetary formation. Such a fate befell the Minyan ship the P7E by accident (and nearly also happened to another Minyan vessel, the R1C) (DW: Underworld), and the vessel carrying the last of the Racnoss by design. (DW: The Runaway Bride)


This article uses material from the "Planet" article on the Dr Who wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

Memory-beta

Up to date as of February 02, 2010

Memory Beta, the wiki for licensed Star Trek content.

A planet is a celestial body typically found in orbit around a star. Planets are typically sphereoid and may have other bodies in orbit of themselves such as moons, rings or artifical satalites which can include communications or defence technology or orbital facilites such as starbases and shipyards. There are two basic types of planets, small solid rocky planets which may have a thin atmosphere and gas giants which are almost entirely atmosphere. Small planet like bodies are planetoids or dwarf planets and smaller bodies still are asteroids.

Planetary Classification

The Federation classified planets it cataloged based on criteria such as atmospheric composition, surface temperature and conditions, the size of the body and the presence of animal and plant life. This system is used to determine the suitability of the planet for exploration, colonization and scientific research.

Each class of planet is assigned a letter in the alphabet based on its suitability. For example, Class M (sharing meaning with the Vulcan designation Minshara class) is applied to planets that can support life without any special circumstances, such as Earth, Vulcan or Cardassia. (ST reference: Star Trek: Star Charts; ENT episode: "Strange New World")

class description surface atmosphere
class A geothermal planet geothermal partially molten hydrogen compounds
class B geomorteus planet geomorteus partially molten, high temperature extremely tenuous, chemically inactive
class C geoinactive planet geoinactive low temperature partially frozen
class D planetoid asteroid/moon barren and cratered metallic, iron-nickel-silicate none or very tenuous
Class E Geoplastic Molten, high temperature Hydrogen compounds and reactive gases
Class F Geometallic Volcanic Hydrogen compounds
Class G Geocrystalline Crystallizing Carbon dioxide, some toxic gases
Class H Desert Hot and arid, little or no water May contain heavy gases and metal vapors
Class I Gas Supergiant Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates heat Variable presure and composition, may contain water vapor
Class J Gas Giant Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates some heat Variable presure and composition
Class K Adaptable Barren, little or no water Thin, mostly carbon dioxide
Class L Marginal Rocky and barren, little water Oxygen/Argon, high concentration of carbon dioxide
Class M Terrestrial Water abundant Nitrogen, Oxygen and trace elements
Class N Reducing High temperature Extreamly dense, carbon dioxide and sulfides
Class O Palagic 80%+ water Nitrogen, Oxygen and trace elements
Class P Glaciated 80%+ water ice Nitrogen, Oxygen and trace elements
Class Q Variable Various Tenuous to dense
Class R Rogue Maybe temperate due to geothermal venting Primarily volcanic outgassing
Class S Ultragiant Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates considerable heat Variable presure and composition, may contain water vapor
Class T Ultragiant Tenuous, comprised of gaseous hydrogen and hydrogen compounds, radiates considerable heat Variable presure and composition, may contain water vapor
Class Y Demon 500°K+ Turbulent, saturated with toxic chemicals and therionic readiation

The Klingons had a separate classification system, one of which is a Q'tahL class. (ENT episode: "Sleeping Dogs")

Connections

MultiverseUniverseGalaxy
Galactic Regions: QuadrantSector • Cluster • NebulaStar system
System Bodies: StarPlanetPlanetoidDwarf planetAsteroidMeteoroidComet

This article uses material from the "Planet" article on the Memory-beta wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

DC Comics

Up to date as of February 01, 2010
(Redirected to Category:Planets article)

From DC Database

Planets are large spherical bodies of matter that are in orbit around a star. Along with those of the Sol system, many planets in other star systems are known to exist. Some of Earth's most ardent champions (and deadliest enemies) originally hailed from other planets.

Below is a list of known planets and some of their history as it relates to the heroes of our planet.

See also: List of aliens, List of people by species and List of Races for more info on planetary races.


Subcategories

This category has the following 33 subcategories, out of 33 total.

A

C

D

E

J

K

M

N

O

Q

R

R cont.

S

T

V

Y


This article uses material from the "Category:Planets" article on the DC Comics wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

ST Expanded

Up to date as of February 07, 2010

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

A planet is a celestial body of a certain shape and size with certain characteristics. Some of these characteristics include gravity creating a sphere-like shape and being small enough to be unable to create thermonuclear fusion. Most planets, but not all, orbit one or more stars.

A planet usually has a diameter above 100 kilometers; celestial bodies below this size are usually classified as planetoids or asteroids. Their surfaces, compositions and masses can vary from planet to planet. For example, some planet surfaces may be completely or mostly comprised of water, while other planet surfaces are completely gaseous.

Some planets, like Earth, have one or more satellites (both natural and manufactured), while others, like Vulcan have none.

The Federation has classified planets into several types. One such type, Class M, is able to support a wide variety of life forms.

External links


This article uses material from the "Planet" article on the ST Expanded wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

Starwars

Up to date as of February 04, 2010

From Wookieepedia, the Star Wars wiki.

A purple planet
"A planet can be described as a single organism, a living creature with a skeleton of stone and a heart of molten rock. The species that inhabit a planet, plant and animal alike, from microbe to megalossus, are the planet-creature's organs, internal symbionts, and parasites."
Vergere to Jacen Solo, as an analogy to a Sh'rip Sh'pa

A planet was a celestial body that was in orbit around a star, was neither a star nor a moon, and had cleared out the area around its orbit as it formed by causing all other smaller bodies in its orbit to accrete with it. As a consequence, it would not share its orbital region with any other bodies of significant size, except for moons or those collected later under its gravitational influence.

Depending on the tilt of the planet's axis, planets also had varied seasons with ranging temperatures and weather. Planets were extremely varied in terms of environmental conditions and landscape, ranging from completely oceanic (such as Manaan and Kamino) to thick arboreal rainforests (such as Kashyyyk and Felucia). Some planets, such as Hoth, were completely frozen, while other planets, such as Nelvaan, were experiencing an ice age. Some planets, like Geonosis, Korriban, and Tatooine, were completely barren and desolate, covered in little more than rock and sand; while others (such as Coruscant and Taris) became an ecumenopolis, in which the entire planetary surface was covered by one gigantic city. Many planets, like Dantooine, Naboo, Alderaan, and Corellia, contained a mix of landscapes, with various continents, oceans, and mountains.

Most life-bearing planets had primarily nitrogen and oxygen-based Type I atmospheres; though some (such as Dorin, Gand, and Skako) had unique atmospheres to which their native life forms had adapted. Gas giants, planets made up of primarily gaseous layers, were rarely inhabited, though they were sometimes used for resource collection (such as the Tibanna gas operations on Bespin).

Contents

Appearances

  • Darth Bane: Path of Destruction
  • Darth Bane: Rule of Two
  • Darth Bane: Dynasty of Evil
  • Darth Maul: Shadow Hunter
  • Star Wars Episode I: The Phantom Menace
  • Star Wars Episode II: Attack of the Clones
  • Yoda: Dark Rendezvous
  • Star Wars Episode III: Revenge of the Sith
  • Star Wars: Empire at War
  • Star Wars Episode IV: A New Hope (First appearance)
  • Allegiance
  • Star Wars Episode V: The Empire Strikes Back
  • Star Wars Episode VI: Return of the Jedi
  • Omen
  • LEGO Star Wars: The Video Game
  • LEGO Star Wars II: The Original Trilogy
  • LEGO Star Wars: The Complete Saga
  • Star Wars: Empire at War: Forces of Corruption
  • Star Wars: Empire at War: Forces of Corruption: Prima Official Game Guide
  • Star Wars: Empire at War: Prima Official Game Guide
  • Star Wars: Republic Commando
  • Star Wars: Battlefront II
  • Star Wars: Battlefront
  • Star Wars: Jedi Starfighter
  • Star Wars: Starfighter

Sources

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.

See also

External links


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

SWG Wiki

Up to date as of February 04, 2010

From SWG Wiki

Star Wars Galaxies allows the player to visit various planets of the Star Wars universe.

With new extensions some new planets were added. Most planets can have player cities and also feature planet-specific weather effects e.g sandstorms on Tatooine.


Also see Tanaab


This article uses material from the "Planet" article on the SWG Wiki wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

Transformers

Up to date as of February 05, 2010

From Teletraan I: The Transformers Wiki

By scientific definition, a planet is any object orbiting a sun with an empty path and sufficient gravity to not tear apart or deform. However, the definition of "planet" used in Transformers context is a bit different. ANYTHING with gravity can be a planet, and oddly, they all seem to be about the same.

Major known planets

Over the course of the many continuities of Transformers, a lot of planets have been encountered, most of them sustaining life. Here are some of the more well-known planets prominently mentioned. It should be noted in some continuities, they are vastly different in atmosphere and gravitational pull, while in others, they're invariably JUST LIKE EARTH.

  • Earth - Most likely, you're on it.
  • Cybertron - The homeworld of the Transformers. According to which source you use, it is either much smaller than earth, about equal to the Moon in size, or much larger, about equal to Saturn. Regardless of the differences in gravity either size would cause, humans can walk on it with no problems (in most, maybe all, continuities). It may or may not also house a God and turn into a gigantic robot of unspeakable and awesome power.
  • Nebulos - Home to human-like aliens who can combine with larger robots through special armor and cybernetic implants.
  • Master - Kinda the same, but the aliens are robots or something. Crazy, we know, but only in the Japanese Headmasters anime.
  • Junkion - AKA the intergalactic junk yard. Looks more like a single continent than a whole planet (and probably wouldn't be considered a planet either, at least in real life).
  • Velocitron, Jungle Planet, and Gigantion - the three colony worlds of Cybertron. Way in the past, these planets were to be made into homes for Cybertronians, but the space bridge project failed and most of them forgot about it (except for the Gigantions who just kept on mindlessly building). Gigantion in particular appears to be much larger than Earth but still has Earth-like gravity (that, or the human kids are incredibly strong), and all of them have an Earth-like atmosphere (or, the kids the Autobots picked up DON'T BREATHE).

Transforming planets

Some planets are known to be capable of transforming. The two most commonly known are Unicron and Primus. Both were given life at the beginning of time by the One, the sentient core of the universe, or in one case, a puddle of glowing food-goo. Whatever the origins, they are beyond legendary, with their stories heard throughout the universe, and not only by Transformers. The planet Junkion was SUPPOSED to transform, but they probably forgot when they came back from commercial break.

External links

  • Transformers Planetology by Grebo
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This article uses material from the "Planet" article on the Transformers wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.







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