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It means its orbit is a circle. Seasonal variation is due to the tilt of the planet's axis of rotation relative to its orbit, not orbital eccentricity.
by mitthrowaway2 3y ago
It means its orbit is a circle. Seasonal variation is due to the tilt of the planet's axis of rotation relative to its orbit, not orbital eccentricity.
- rglullis 3y agoI know what causes seasonal variations, but for some reason I thought 0.0 eccentricity meant no tilt. Thanks
- wkat4242 3y agoWell on our planet that's the case. Another planet might well have seasons due to orbital eccentricity. Though it would have to be pretty serious eccentricity I think. If they would have no tilt then the seasons would be the same all over the planet unlike ours where they're opposite in each hemisphere.