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Planet Classes
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Source: Worlds of the federation, Star Trek encyclopedia. A class is conjectured.
Where the two differ, the definition in the encyclopedia is used. Where no classification
exists in the encyclopedia, the Worlds of the Federation classification is used.
Note: Examples from the fleet map are followed by (HWF).
Class Description Example
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A dilitium core, geologically active, unstable Drame IV
B non-radiant Neptune
C Very Hot, thick CO2 rich atmospheres Venus
D Asteroids and small rocky planetoids
no atmosphere. Ceres, Luna (Earth's moon), Regula
E Large Molten core Janus VI
F young, surface still cooling Delta-Vega
G desert, very hot, not habitable
H generally extremely dry, but sometimes habitiable. Tau Cygna V
I small, young, surface still cooling
J gas giant Jupiter
K adaptable Mars
L small, rocky, terrestrial worlds
with oxygen-argon atmospheres;
can support life, but usually
limited to plants. Indri VIII
M small, rocky, terrestrial worlds
with oxygen-nitrogen atmospheres,
and are highly supportive of organic life.
M comes from the Vulcan classification of
these worlds, Minshara class. Water covers
less than 97% of the surface. Earth, Vulcan
N ocean planet, nitrogen-oxygen atmosphere
Water covers more than 97% of the surface. Delot IV (HWF)
Y Demon-Class worlds, are extremely inhospitable
to humanoids. Surface temps can reach
500 kelvins, and toxic atmospheres filled
with thermionic rediation. It can be dangerous
for a spaceship even to orbit a Class-Y planet.
Curtesy of Mike G. Balsom. ( CEO of the USS HOOD. )
Updated Aug 2002 with info from Trek Encyclopedia
(
geocities.com/~holoworldfleet)