Yarro

Yarro is a fictional terrestrial planet frequently used in science fiction and tabletop role-playing settings. In common depictions, it orbits a mid-sized star in a distant sector and has a year of roughly 380 to 420 days, a rotation period close to 24 hours, and a geologically diverse surface with substantial ocean coverage.

The planet features two large continental regions, Ardentia and Vaelor, connected by archipelago belts along the equator. Its climate is varied, with tropical lowlands, temperate forests, and highland zones that receive seasonal rainfall. The atmosphere is described as breathable for humans under normal conditions, with no extraordinary atmospheric hazards in most narratives.

Societal organization on Yarro is often portrayed as a federation of city-states or a decentralized republic, governed by a central council with regional assemblies. Major urban centers include Lyr, a coastal capital, and Garan, a hub for research and trade. Interactions with other civilizations are a common theme, driving exploration, diplomacy, and sometimes conflict.

Economy and ecology on Yarro typically emphasize sustainable practices alongside resource extraction. Key sectors include fisheries, forestry, mineral mining, and agricultural production supported by riverine and coastal ecosystems. The Great River system and a network of protected biomes are frequently highlighted as central to both livelihoods and biodiversity.

In scholarly and fan-produced works, Yarro serves as a setting to explore environmental stewardship, intercultural exchange, and frontier science, often balancing political stability with regional tensions and a rich tradition of storytelling.