Galactic Atlas

Atheri Prime is home to densely clustered predominantly young and middle-aged yellow and orange stars, with stable planetary systems and a generally calm stellar environment. It is home to many temperate terrestrial planets, water worlds, ancient biospheres and complex ecosystems, and has a higher-than-usual tendency towards stable climates. As such, a larger than average portion of the oldest continuously inhabited societies and agricultural centers are found in Atheri. Beneath its forests, deserts, and seas lie the remains of countless forgotten civilizations, and comparatively fewer truly untouched worlds remain.

The Inner Ring is the densely packed stellar region immediately beyond the Umbral Ring surrounding Umbra, the supermassive black hole at the center of the galaxy. It is among the most volatile regions of known space, characterized by young stars, binary star systems, and unstable stellar nurseries. On many Inner Ring worlds, the night sky never becomes entirely dark. Nearby stars cast a perpetual twilight across planetary landscapes from all directions, while elevated background radiation makes planets with thick atmospheres or powerful magnetic fields favorable for habitation. The Inner Ring is also the most heavily traveled and fiercely contested region of the galaxy. Throughout the ages, civilizations have risen and fallen in their struggle to control the slipstream junctions that converge upon the Umbral Ring, making the region the political, economic, and strategic heart of known civilization.