Castron

Castron is a habitable terestrial planet located within the Quaternion system of human space.

Castron is pockmarked with craters, many of which contain "crater cities". Some cities are built around large inland crater seas, where the wind is more calm compared to the open oceans, making them perfect for use as waterdocks for larger spacecraft and super-suspenders.

Castron has an overall more arid climate compared to other habitable worlds.