Winter

Winter is an anomalously large super-Earth with very little axial tilt. As a result, while ⅔ of the planet is covered in freezing ice sheets, the planet's sun has carved a habitable zone into the equatorial ⅓ of the planet. The planet experiences mild seasonal variation from the remaining axial tilt. In general, the sun tends to cause the water at the equator of the planet to evaporate, which is swept by trade winds to the ice sheets, where it condenses and causes endless rain. The planet is relatively geologically stable; earthquakes are somewhat more common than on Earth due to convection beneath the ice sheets, but otherwise living here is a very similar experience to living on Earth.