SANJIESAN LORE / Planetary setting
Check seasons on both sides of an invented equator
A world map can grow across an equator while every chapter keeps the same northern seasonal assumptions. NASA explains Earth’s opposite hemispheric seasons through axial tilt. If an original planet intentionally uses a similar seasonal arrangement, carry that premise into both regions instead of treating the map’s latitude as decoration.
State the planetary premise once
Mark the equator and place two story locations on different sides. Decide whether the world uses an Earth-like tilt-driven cycle or an explicitly different mechanism. You do not need to calculate a complete planetary model for a short story, but you should know which premise the chapters depend on. Avoid using summer simply as a synonym for the same month everywhere, especially when the local calendar has its own names.
Give each region a local consequence
Choose one practical detail at each location during the same story interval. One community may prepare an outdoor meeting while the other stores equipment for a different season. Do not force every climate into four identical temperate seasons; local rainfall, altitude and other features need their own research if relevant. The exercise is about carrying your chosen large-scale premise consistently, while allowing the places to remain environmentally distinct.
Compare simultaneous chapters
Read the two chapters side by side and highlight seasonal references in clothing, plants, daylight and planned work. Ask which follow the intended premise and which were imported unconsciously from your own home. Revise the mismatches that affect the scene. A character can still misunderstand another region’s seasons; distinguish that character mistake from the narrator’s account and the author’s working map.