Hierachy Tree

The Externian hierachy tree is a caste system used mostly by the Megisle and surrounding territory. It classifies the astronomical object heads by their class in the society.

Super-High Class
The Super-high class is the highest classification in the system and major royalty is given to the types there. They often lead larger cities, such as Exo City and Externalia, however this is rare. Weaponry is often much more exquisite than most.
 * Nebula
 * Galaxy
 * Hypergiant Stars

High Class
The High-class is the penultimate classification in the system and is often the most common type of leader in the hierachy tree. They are often divided into several sub-classes.

Stars

 * Stars
 * Black Holes
 * Supergiant Stars
 * Wolf-Rayets
 * Neutron Star
 * Supernovae
 * Dwarf Stars (aka brown dwarfs)

Gas Giants

 * Protostar

Medium Class
The Medium class is the third classification and the majority of the Exo's populace. They often serve as the middle or working class of the population, and are given basic needs such as housing and food.

Planets

 * Rocky Planet
 * Hot Planet
 * Gas Giant
 * Binary Planets
 * Artificial Planets
 * Earth Analogs
 * Chthonian Planets

Gas Giants

 * Super Jupiters

Low Class
The Low class is the fourth and last classification and the majority of the problems that arise in the Archipelago are often caused from them. The tree demands that there be no major resources given to the Low class as they are deemed unfit. They are often given zero supplies and must scavenge for needs.
 * Asteroids
 * Moons
 * Lesser Moons
 * Planetary Disk
 * Dead Planets

Unclassified
The Unclassified are astronomical bodies that are considered "mutative" or otherwise abnormal and thus do not have a classification on the list. Their permissions vary, and often times are hard to comprehend. Most of the time, they act like Medium classes.
 * Astronomical Wall
 * Constellation
 * Cluster
 * Preon Star
 * Quark Star
 * Thorne-Zytkow
 * Vulcanoid
 * Pulsar
 * Galactic Supercluster
 * Quasar