Erda

Erda is the moon where the people of Brass and Magic live. Although it's a moon, it experiences seasons, day/night cycles, and has many biomes.

Seasons

Erda's orbit around Cyclops creates mini-seasons due to tidal heating and occultation, however, the primary seasons come from Cyclopean radiation which fluctuates over the course of a year. Because of this the only real seasons on Erda are Summer and Winter.