Baron Opal II
Legend
Seasons are generated due to the differing incidence of light from a star onto a planet from axial tilt. As the plant revolves around the star the amount of direct vs. diffuse sunlight alternates between the hemispheres. For us, part of this seasonal variation is due to the shifting of the border of atmospheric cells (i.e. Hadley, Ferrel, Polar).
Okay, fine. If you had a planet with minimal axial tilt, you therefore would have a minimal seasonal change. Weather would be fairly constant, although you would still have variation from heat transfers between land and sea.
But, what if you had a planet with a minimal axial tilt and a relatively eccentric orbit? A planet with Venus' axial tilt and Mars' eccentricity- It would have seasons that would be based on a variance on total light exposure. This would make for a more planetary than hemispherical seasons. However, would you still have the full range of climates on this hypothetical planet? Could you have a tropical zone, or would you have a new type of temperate climate that has particularly dry, hot summers and wet, mild winters instead of a monsoon season?
Okay, fine. If you had a planet with minimal axial tilt, you therefore would have a minimal seasonal change. Weather would be fairly constant, although you would still have variation from heat transfers between land and sea.
But, what if you had a planet with a minimal axial tilt and a relatively eccentric orbit? A planet with Venus' axial tilt and Mars' eccentricity- It would have seasons that would be based on a variance on total light exposure. This would make for a more planetary than hemispherical seasons. However, would you still have the full range of climates on this hypothetical planet? Could you have a tropical zone, or would you have a new type of temperate climate that has particularly dry, hot summers and wet, mild winters instead of a monsoon season?