| Type: | G9V Yellow Main Sequence Star |
| Radius: | 4.17 x 108 km |
| Mass: | 2.15 x 1030 kg (110% of Sol) |
| Temperature: | 5200 K |
| Luminosity: | 4.98 x 1026 W (130% of Sol) |
| Ecosphere: | Between 1.09 and 1.57 AU |
| Location: | Xi Seraphim Sector |
Located in the Xi Seraphim Sector, the Xanthon system is powered by a G9V Yellow Main Sequence star that is slightly more massive and luminous than Sol. The inner system is dominated by Anathema, a small, scorched Class A world orbiting at 0.593 AU, where the surface is choked by volcanic activity and a crushing 15-atmosphere sulfur dioxide environment. Beyond this hellscape lies a dense asteroid belt (0.859–1.419 AU) that acts as a boundary to the system's habitable zone. Here, the Class M world Kenoma orbits at 1.321 AU, serving as a sanctuary of life with an Earth-like oxygen-nitrogen atmosphere and a complex retinue of five moons—ranging from the massive Sabaoth to the tiny, icy Ariel. The system concludes with the solitary Class I ice giant Pleroma at 2.304 AU, a cold, moonless world of ammonia and methane marked by a tilted magnetic field.
Anathema
| Class: | A |
| Distance: | 8.9 x 107 km (0.593 AU) |
| Period: | 166 days 22 hours and 5 minutes |
| Radius: | 3,093.8 km |
| Gravity: | 0.381 g |
The planet is a Class A terrestrial body situated at an orbital distance of 8.9 x 107 km (0.593 AU) from its primary star. It maintains an orbital period of 166 days, 22 hours, and 5 minutes. The physical characteristics of the world include a radius of 3,093.8 km and a surface gravity of 0.381 g. This small, barren, and volcanic planet possesses no natural satellites. Environmental conditions are characterized by an extreme atmospheric pressure averaging 1530.4 kPa (15.11 atmospheres) and a mean surface temperature of 129.7°C. The atmospheric composition is dominated by sulfur dioxide and carbon dioxide. Geologically, the surface is composed primarily of igneous silica and basalt.
Asteroid Belt
Occupying the orbital plane between 0.659 AU and 1.019 AU, this asteroid belt serves as a stark boundary between the scorched inner system and the habitable zone. Due to the high luminosity of Xanthon, the constituents of the Veil are devoid of volatiles; they are exclusively refractory bodies dominated by S-type stony silicates and dense M-type nickel-iron cores, remnants of a differentiated planetary embryo that failed to coalesce. The region is exceptionally massive, containing a total material mass of approximately 6.0 x 1021 kg, roughly double that of the Solar System’s main belt. While individual large bodies remain separated by vast distances, this increased number density creates a highly active region of collisions. The constant grinding of rock against metal generates a thick, persistent disk of micrometer-sized dust grains, scattering the star's light to create a brilliant, distinct band of zodiacal light visible from the surface of Kenoma.
Kenoma
| Class: | M |
| Distance: | 1.321 AU |
| Period: | 1 year 189 days 7 hours and 22 minutes |
| Radius: | 9,587.91 km |
| Gravity: | 0.934 g |
The planet is a Class M terrestrial world orbiting at a distance of 1.321 AU. It completes one sidereal period every 1 year, 189 days, 7 hours, and 22 minutes. Structurally, the planet has a radius of 9,587.91 km and exerts a surface gravity of 0.934 g. A system of 5 moons orbits the planet. The environment is Earth-like with a mean surface temperature of 11.1°C and an average atmospheric pressure of 90.7 kPa (0.90 atmospheres). Its atmosphere consists primarily of oxygen, nitrogen, and argon. The lithosphere is composed of silicon, iron, and magnesium.
Sabaoth
| Class: | D |
| Distance: | 7.32701 x 106 km |
| Period: | 3 days 23 hours and 1 minute |
| Radius: | 2,748.55 km |
| Gravity: | 0.409 g |
This substantial moon orbits at a distance of approximately 7.32701 x 106 km, completing a revolution every 3 days, 23 hours, and 1 minute. With a radius of 2,748.55 km, it is a significant body, exerting a surface gravity of 0.409 g. Despite its size this moon is a cold, desolate world; it lacks an atmosphere entirely, and its surface temperature averages -33.6°C.
Saklas
| Class: | D |
| Distance: | 1.12552 x 107 km |
| Period: | 7 days 12 hours and 54 minutes |
| Radius: | 2,280.59 km |
| Gravity: | 0.33 g |
This moon circles its parent body at a distance of 1.12552 x 107 km with an orbital period of 7 days, 12 hours, and 54 minutes. It has a radius of 2,280.59 km and a surface gravity of 0.33 g, making it slightly smaller and lighter than Moon 805. The surface is devoid of an atmosphere and maintains an average temperature of -23.7°C.
Nebro
| Class: | D |
| Distance: | 1.39874 x 107 km |
| Period: | 10 days 10 hours and 37 minutes |
| Radius: | 1,876.04 km |
| Gravity: | 0.255 g |
Orbiting further out at 1.39874 x 107 km, the moon takes 10 days, 10 hours, and 37 minutes to complete a full circuit. It is a moderately sized moon with a radius of 1,876.04 km and a relatively low gravity of 0.255 g. The environment is harsh and vacuum-exposed, with no atmosphere to trap heat, resulting in an average surface temperature of -22.7°C.
Ariel
| Class: | D |
| Distance: | 1.42800 x 107 km |
| Period: | 10 days 18 hours and 31 minutes |
| Radius: | 95.3 km |
| Gravity: | 0.011 g |
Moon 535 is a tiny, distinct object compared to the others in this system. While it orbits at a similar distance of 1.42800 x 107 and shares a similar period of 10 days, 18 hours, and 31 minutes, it is drastically smaller, with a radius of only 95.3 km. Consequently, its gravity is negligible at just 0.011 g. This small, icy chunk has no atmosphere and sits at a colder average temperature of -39.0°C.
Yaldabaoth
| Class: | D |
| Distance: | 1.43484 x 107 km |
| Period: | 10 days 20 hours and 23 minutes |
| Radius: | 1,397.49 km |
| Gravity: | 0.197 g |
This moon orbits at a distance of 1.43484 x 107 km, very close to the orbital path of it's nearest neighbor, with a period of 10 days, 20 hours, and 23 minutes. It is, however, much larger than its tiny neighbor, boasting a radius of 1,397.49 km and a gravity of 0.197 g. The surface is an airless expanse of ice and frozen hydrocarbons with an average temperature of -28.6°C.
Pleroma
| Class: | I |
| Distance: | 2.304 AU |
| Period: | 3 years 182 days 15 hours and 21 minutes |
| Radius: | 19,631.6 km |
| Gravity: | 0.177 g |
Classified as an ice giant, this planet orbits at a distance of 2.304 AU, completing a full revolution every 3 years, 182 days, 15 hours, and 21 minutes. Despite a substantial radius of 19,631.6 km, the world possesses a remarkably low surface gravity of 0.177 g and lacks any orbiting moons. Its composition is a mixture of rock, ice, methane, and ammonia, distinguished by a tilted magnetic field. Deep inside, the average internal conditions reach 568.0 atmospheres (57,540.7 kPa) at a temperature of 8.3°C, with the atmospheric pressure dropping by a third to a half for every 293.2 km of distance from the core.