Eris, the Pearl
Eris is a mottled grayish-white gas giant composed primarily of hydrogen. It is a so-called
“warm gas giant,” close enough to its sun to result in high surface temperatures and a volatile atmosphere. Eris’ solid core is tidally locked with the sun, meaning it doesn’t spin. But the massive atmosphere and its weather systems still tend to circulate, presenting an ever-changing face toward the primary. The high winds that prevail on the surface tend to distribute the heat, so there’s actually little variance in temperature between the light side and dark—leaving the entire planet open to hydrogen extraction. Eris orbits the sun Hyaergos once every 60 weeks. Eris has two relatively young planetary rings, believed to have formed from a collision between a supermassive alien vessel and a moon. It also has its own system of eight moons—two of them habitable. A few asteroids in Eris’ rings are big enough to have a rudimentary atmosphere and a little gravity, but most do not.