Class C geoinactive planet

For other uses, see class C.

Class C Geoinactive
Psi 2000
Classification:	geoinactive
Age:	2–10 billion years
Diameter:	1,000–10,000 km
Location:	ecosphere or cold zone
Surface:	low temperature
Atmosphere:	partially frozen
Lifeforms:	none known

In planetary classification, a class C geoinactive planet is a type of planet. As the name describes, the planet is generally geothermally inactive, generating no heat energy. This type of planet is usually in the very late stages of development and has likely evolved from other classes. No lifeforms have ever been discovered on these planets. (ST reference: Star Charts)

This classification should not be confused with the class C reducing planet described in ST references: Star Trek Maps, The Worlds of the Federation.

Planets of this type

• Pluto
• Psi 2000

Appendices

Connections

Planetary classification
numeric:	class 9 ("Q'tahL"-class)	alphabetical:	class A class A geothermal class A gas giant
class B class B geomorteus class B gas giant	class C class C geoinactive class C reducing	class D	class E
class F class F geometallic class F geocrystalline	class G class G geocrystalline class G desert	class H class H desert class H geothermal	class I class I gas supergiant ("Q'tahL"-class) class I metallic/silicate
class J class J gas giant class J moon	class K class K silicate/adaptable class K transjovian	class L	class M ("Minshara"-class) class MZ
class N class N reducing class N pelagic	class O	class P	class Q
class R	class S	class T	class Y ("Demon"-class)

References

• ST reference: Star Trek Maps