Pereplut

Paravin A'Kloli
 * Paravin is a small, unremarkable rock world. The surface is scorching hot, and mainly composed of calcium with deposits of aluminium. Paravin's low mass has left it tidally locked to the star Pereplut. If there were any resources of value, mining stations could be established on the relatively temperate "twilight band".
 * A'Kloli is a modest terrestrial world, with an atmosphere composed of nitrogen and argon. Its surface is mainly composed of nickel with deposits of silver.

Ageko Vemal Patatanlis Antiroprus
 * A'Kloli’s environment is relatively mild, but the scarcity of water or similar enabling substances has prevented the development of any biosphere.
 * Ageko is a standard terrestrial with a thin atmosphere of krypton and xenon. Its crust is mainly composed of magnesium with deposits of cobalt and other heavy metals.
 * Vemal is an enormous terrestrial world of mixed rock and ice with an atmosphere of methane and ethane. Its frozen surface is mainly composed of calcium with deposits of iron.
 * Patatanlis is a large rock world, with an unusually thin atmosphere of hydrogen and carbon monoxide. The frigid world's crust contains extensive deposits of uranium, and occasional lodes of naturally occurring plutonium. With a total mass more than four times that of Earth, Patatanlis should have a significantly thicker atmosphere. This unusual feature has flagged it as worthy of scientific investigation.
 * Antiroprus is a hydrogen-helium gas giant that formed in the outer regions of Pereplut’s system, and is in the process of migrating inwards. In a few million years the planet's atmosphere will begin to "boil away" into space.


 * There is a sizable temperature difference between the side of Antiroprus facing the energetic blue giant primary and the side facing the cold of deep space. This variance powers massive cyclonic wind systems. The intense heat it absorbs from the sun, in addition to its own internal heat engine, causes the planet's dark side to radiate faintly in the infrared.