Eros system

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Eros system
Spectral type G6, G9, K4, K7
Age 3.5 billion years
Size 0.9, 0.8, 0.7, 0.6 solar masses
Surface temperature 5399 K, 4984 K, 4213 K, 3880 K
Diameter 0.9, 0.8, 0.7, 0.6 solar diameters
Stars 4
Planets 7
Moons 2
Cluster Twin Hearts Nebula
Polities Karalian Empire

Eros is a unique quadruple star system about 4.5 lightyears away from Szon. Eros A and Eros B are both Class G stars and orbit each other at the center of the system. Eros C and Eros D are both Class K stars that orbit the edge of the system at about 50 AU.

Around 25 AU from AB is a large dust cloud simply known as the Eros Cloud, which is responsible for the formation of the system's planets. This is a leftover from the solar system's early stages of formation, but the gravitational resonance between the stars keeps it from forming into a large planet. Because of this, CD is responsible for perturbing comets and providing water and other materials for the system's inner planets. However, there are no planets orbiting CD as a result.

Planets orbiting Eros A


A hostile planet tidally locked to Eros A. Its thick atmosphere traps heat making it a pressure heavy planet with lots of volcanic activity and windstorms.


Main article: Nerisuc

An oceanic planet with a thick atmosphere that orbits both Eros A and Eros B. It is home to the infamous Lusari and is the first planet outside the Szon system discovered to have life by the Vaikan. Nerisuc's atmosphere is unbreathable by the Vaikan, but they can survive wearing only breath masks. It is 1.1 AU from its star and takes 1.2 years to make a complete orbit.


Main article: Roma

Roma is a large crater-filled moon of Nerisuc about one quarter of its size. It is notable for having a small ring system around it because it catches most of the "planet-killing" meteors that would otherwise to destroy Nerisuc's ecosystem.


Alkuus is a planet with an atmosphere of carbon dioxide. Although it has a thick, greenhouse atmosphere, surprisingly enough, the planet sustains liquid lakes of methanol. The planet sustains a primitive biosphere of microbes.

Planets orbiting Eros B


A close orbiting super Earth planet with a diameter seven times that of Ucharpli.


A gas giant composed of hydrogen and helium. It has one notable large moon, Thath B.

Thath B

Thath B is a rocky planet with a surface scorched by its star.

Circumbinary planets


A rocky, metallic planet found in the Eros Cloud. It is rich with rare metals such as palladium and platinum.


A dwarf planet found further outside the dust cloud. It is a rocky planet covered in craters. Arokin has six small moons.