AGE
DIAMETER
LOCATION
ATMOSPHERE
SURFACE
SURFACE TEMP
HABITABILITY
2-10 billion years old
500,000 - 50,000,000 kilometers
cold zone
hydrogen and helium
liquid metallic hydrogen
-220°C
uninhabitable
Aside from their colossal size, there is little that
differentiates a Class S: Super Giant world from its
Class J: Jovian counterpart. Located in a star system’
s cold zone, they often boast impressive ring
systems and harbor dozens of moons.

Giant worlds like Class S and the other gaseous
planetoids tend to act as “shields” for the terrestrial
planets in the ecosphere, as their powerful
gravitational fields tend to divert comets and
asteroids away from the interior of a star system.