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Comment Re:Bad example (Score 3, Informative) 373

The sun isn't an inertial frame of reference either. Both the sun and the earth orbit something called the barycenter, which is the center of mass of the sun-earth system. This just happens to be so near the center of the sun (because the sun is so massive) that for most intents and purposes, the earth can be said to orbit the sun.

This discussion, however, is not one of those intents and purposes.

To communicate is the beginning of understanding. -- AT&T