The Eris Star System, colloquially known as The Eris, is a stellar system distinguished by its primary, a class K star officially cataloged as K5Vpq!. The system comprises a singular planet, Tallis, renowned for its tidally locked characteristic, and a smaller companion, the dwarf planet Omen. The Eris system remains a focal point of astronomical and cultural studies due to its unique celestial mechanics and the historical significance attributed to its components by the inhabitants of Tallis.
As the central star, Eris exhibits typical features of a K5Vpq! class star, including a cooler temperature spectrum that casts an amber-ish white hue on Tallis for the entirety of its day. The spectral peculiarities noted by the "pq!" designation note low UV radiation as a peculiar spectral property.
Tallis, the lone planet of The Eris, orbits its host star at a distance that allows it to sustain a complex ecosystem, albeit divided by extreme conditions due to its perpetual day and night sides. Most of the planet's inhabitants reside in the illuminated hemisphere, with settlements ingeniously adapted to the challenges posed by its environment.
Omen, the system's dwarf planet, follows a wide, elliptical orbit that infrequently intersects between Eris and Tallis. These transits, or eclipses, cast a distinctive shadow across portions of Tallis, historically interpreted by Tallisites as omens of forthcoming misfortune. Despite such events losing their ominous implications over time, they remain significant cultural occurrences.
Historically, the Eris system played a central role in the development of religious and philosophical beliefs on Tallis. The unpredictable eclipses caused by Omen were once considered divine messages, influencing the ancient Tallisite civilizations profoundly. Although the modern society of Tallis has adopted a more secular viewpoint, separating ecclesiastical authority from governance, the cultural heritage of sun worship and the mystique of Omen's eclipses persist in literature, art, and public consciousness.