PLANETARY CLASSIFICATIONS

Class A - Gas Supergiant

Planets of this class are usually found in a star's outer or "cold zone". They are typically
140 thousand to 10 million kilometers in diameter and have high core temperatures
causing them to radiate heat. Low stellar radiation and high planet gravity enables them
to keep a tenuous surface comprised of gaseous hydrogen and hydrogen compounds.


Class B - Gas Giant

Class B Planets are usually found in a star's outer or "cold zone". They are typically 50
thousand to 140 thousand kilometers in diameter and have high core temperatures but
do not radiate much heat. Low stellar radiation and high planet gravity enables them to
keep a tenuous surface comprised of gaseous hydrogen and hydrogen compounds.


Class C - Reducing

Planets of this class are usually found in a star's "habitable zone". They are typically 10
to 15 thousand kilometers in diameter. They have high surface temperatures due to the
"greenhouse effect" caused by their dense atmospheres. The only water found is in
vapor form.


Class D - Geo-plastic

Planets of this class are usually found in a star's "habitable zone". They are typically
10,000 to 15,000 kilometers in diameter. They have a molten surface because they
have been recently formed. The atmosphere contains many hydrogen compounds and
eactive gases. Class D planets eventually cool, becoming class E.


Class E - Geo-metalic

Planets of this class have a molten core and are usually found in a star's "habitable
zone". They are typically 10,000 to 15,000 kilometers in diameter. Their atmospheres
still contain hydrogen compounds. They will cool further eventually becoming class F.


Class F - Geo-Crystaline

Class F planets are usually found in a star's "habitable zone". They are typically 10 to
15 thousand kilometers in diameter and have surfaces that are still crystalizing. Their
atmospheres still contain some toxic gases. They will cool eventually becoming class
C, M or N.


Class G - Desert

Planets of this class can be found in any of a star's zones. They are typically 8 to 15
thousand kilometers in diameter. Their surfaces are usually hot. Their atmospheres
contain heavy gases and metal vapors.


Class H - Geo-Thermal

Planets of this class are usually found in a star's "habitable zone" or "cold zone". They
are typically 1,000 to 10,000 kilometers in diameter. They have partially molten
surfaces and atmospheres that contain many hydrogen compounds. They cool
becoming class L.


Class I - Asteroid/Moon

Planetary bodies of this class can be found in any of a star's zones. They are usually
found in orbit of larger planets or in asteriod fields. They are typically 100 to 1,000
kilometers in diameter. They have no atmospheres. Their surfaces are barren and
cratered.


Class J - Geo-Morteus

Planets of this class are found in a star's "hot zone". They are typically 1,000 to 10,000
kilometers in diameter. They have high surface temperatures due to the proximty to the
star. Their atmospheres are extremely tenuous with few chemically active gases.


Class K - Adaptable

Planets of this class are usually found in a star's "habitable zone". They are adaptable
for humanoid colonization through the use of pressure domes and other life support
devices. They are typically 5,000 to 10,000 kilometers in diameter. They have thin
atmospheres. Small amounts of water are present.


Class L - Geo-Inactive

Planets of this class are usually found in a star's "habitable zone" or "cold zone". They
are typically 1,000 to 10,000 kilometers in diameter. Low solar radiation and minimal
internal heat usually result in a frozen atmosphere.


Class M - Terrestrial

Planets of this class are found in a star's "habitable zone". They are typically 10,000 to
15 thousand kilometers in diameter. They have atmospheres that contain oxygen and
nitrogen . Water and life-forms are typically abundant. If water covers more than 97%
of the surface, then they are considered class N.


Class N - Pelagic

Class N planets are usually found in a star's "habitable zone". They are typically
10,000 to 15 thousand kilometers in diameter. They have atmospheres that contain
oxygen and nitrogen . Water and life-forms are typically abundant. If water covers less
than 97% of the surface, then they are considered class M.


Class S - Near Star

Planets of this class are usually found in a star's "cold zone". They are typically 50
million to 120 million kilometers in diameter and have high core temperatures causing
them to radiate heat and light. These are the largest possible planets, because most
planetary bodies that reach this size do become stars.


Class T - Gas Ultragiant

Planets of this class are usually found in a star's "cold zone". They are typically 10 to
50 million kilometers in diameter. They have high core temperatures causing them to
radiate enough heat to keep water in a liquid state.