Planets are celestial bodies that usually orbit in various orbiting orbits of stars. However, they left some of their orbital orbits and are then called stray planets.

Many of the planets have attracted smaller bodies by their gravitational force, which then orbit them. These are called moons, and some planets, especially the large ones, can have dozens. In addition, the moons can be not only natural but also of artificial origin, serving as defense satellites, shipyards, bases, etc.

Basically, two types of planets can be distinguished, solid rocky planets, which may or may not have an atmosphere, and gaseous planets, usually called gas giants. The third category is the small planets, which are called planetoids, dwarf planets, and the smallest bodies are called asteroids.

The Federation classifies the planet based on judging various criteria such as atmospheric composition, surface temperature, surface conditions, planet size, and the presence and ability to sustain plant and animal life. According to the classification into individual classes, it is then possible to determine whether the individual planets are suitable for exploration and possible colonization.

The individual classes of planets are identified by a letter of the alphabet with an attached brief description of the planet, its surface and atmosphere.