The Full Wiki

More info on Class L planet

Class L planet: Misc



Up to date as of February 02, 2010
(Redirected to Class L article)

Memory Beta, the wiki for licensed Star Trek content.

Class L
Classification: Marginal
Age: 4-10 billion years
Diameter: 10,000-15,000km
Location: Ecosphere
Surface: Rocky and barren, little surface water
Atmosphere: Oxygen/Argon, high concentrations of carbon dioxide
Lifeforms: Limited plant life

In planetary classification Class L is a category of planet, only marginally habitable by humanoid life. Such planets are though capable of supporting humanoid colonization. (ST reference: Star Charts)

As a result of "the Pulse", planet Mestiko was reclassified from Class M to Class L. (TOS - Mere Anarchy eBook: The Centre Cannot Hold)

As of 2370 the Cardassians maintained a colony on a class L world in the Xoxa system. (DS9 novel: Devil in the Sky)

Planets of this type

Template image. This article is a stub relating to a planet, moon or planetoid. You can help our database by expanding on it.


Class L article at Memory Alpha, the wiki for canon Star Trek.

This article uses material from the "Class L" article on the Memory-beta 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 for the canon Star Trek wiki.

Class L marginal

Class L planets range in age from 4 to 10 billion years. Their diameters range in size from 10,000 to 15,000 km. They are located in the ecozone region of a star's solar system, and have rocky, barren surfaces with little water. Their atmospheres are oxygen/argon with a high concentration of carbon dioxide. Lifeforms, if any, are limited to plant life. Class L planets are suitable for human colonization with some terraforming.

Class L planets

  • Indri VIII
  • Venus
  • possibly Borg assimilated worlds.
Earth may have become a Class L planet, as seen briefly in the time conduit in Star Trek: First Contact, after the Borg altered the timeline and assimilated it.

External links

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


Got something to say? Make a comment.
Your name
Your email address