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Earth from orbit, humanity's homeworld
Pahvo, another M-class world
Priors 5d, a Class-P moon orbiting a Class-J gas-giant

A planet is an astronomical body, usually orbiting a star, that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals. Most life originates on these worlds, with the origin planet of a species being known as a homeworld.

Major worlds[edit | edit source]

Significant planets in Star Trek Online include faction hubs such as Earth, Qo'noS. Several planets host adventure or battle zones, such as New Romulus, Defera Prime and Nimbus III.

Classification[edit | edit source]

The Federation classifies planets (and similar astronomical phenomenon) by their atmosphere, temperature, vegetation, and size, denoting each grouping by a letter. For example;

  • A Class-M world is an Earth-like planet but includes some extremes such as Andoria and Vulcan where they are still friendly to Humanoid life.
  • Class-D is a barren planetoid or moon, such as Havas-Kul or Luna.
  • Idran I is a Class-J world, a gas-giant.
  • Class-P, such as Priors 5d, is majority water-ice with a breathable atmosphere.
  • Class-Y worlds, such as Nukara Prime, have toxic atmospheres, sulfuric deserts and surface temperatures exceeding five hundred Kelvin. They are totally inhospitable to most humanoid life, but are native conditions for Tholians.

See also[edit | edit source]

External link[edit | edit source]