Zvezilva IV

Kruszec IV is a desert planet. Millions of years ago, a comet struck one of its moons creating a ring system, and causing a subsequent mass extinction. A similar comet strike billions of years ago shrunk the planet's mantle, causing an iron core that is proportionally large to the planet.

Geography
Kruszec IV has an equatorial desert as well as large ice caps. The planet has only 5% surface water, and is on the verge of becoming a Martian oxide desert. Most of the planet's water has seeped underground, carving out massive underground oceans.

Glaciers have also carved out large portions of the landscape creating canyons and other rocky land formations.

With an unusually large iron core, the planet gives off a strong magnetic field, allowing it to retain its atmosphere. Many magnetic materials can also be found on the surface.