Aanzo

Aanzo presents as glacial blue, with frost-covered plains and slowly shifting ice sheets. Surface temperatures range from -220 to -140°C at 6 atm, with sublimation plumes rising into the thin upper atmosphere. At 8,365 km across, the surface material is primarily frozen ammonia and CO₂ layers over a silicate substrate. Without moons, the tidal environment is relatively calm. What shapes this world is primarily its own internal heat and stellar proximity.