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Gas Dwarf

Gaseous or Nebulous Superterrestrial worlds up to 24 x Earth's mass

kepler-11f compared to Earth
Image from Steve Bowers
The warm gas dwarf Kepler 11f compared in size to Earth
Gas dwarfs are planets with thick, helium-rich atmospheres and small, low density cores. Gas Dwarfs are smaller than Microjovian gas worlds, which have a lower limit of 0.08 x the mass of Jupiter (24 x the mass of Earth).

These planets are commonly known as Gas Dwarfs, but are classified as Nebulous Superterrestrials in the NolWocs system. Kepler 11-f was the first such planet ever discovered, 2000 ly from Sol in the Cygexpa volume.

Helium worlds of this kind often have superrotating atmospheres; those which are tidally locked often have wildly assymetric weather patterns. An example of this type of world is Fira in the Oia system.


Fira
Image from Steve Bowers
Fira,a gas dwarf with an atmosphere which has a notably asymmetric circulation
 
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Development Notes
Text by Steve Bowers
Initially published on 03 August 2011.

 
 
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