Quote:
Originally Posted by renormalised
However, despite being able to do that in some instances, as Craig has said, we cannot predict what the orbit will be at any one stage over long periods of time with any certainty, due to those chaotic gravitational influences etc. We can only take approximate snapshots, as above, only if we have enough evidence and such to be able to do so.
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What margin of error do we have from our current excentricity before we run into serious problems with our surface temperature. Is this orbit shape something that can potentially get big enough? Has it in the distant past? I guess how thick is the 'comfort' zone from the sun?