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The Ecliptic


The “ecliptic” is the path that the planets and Sun and moon all follow as they travel across the sky day after day and year after year. This is a very stable, almost fixed path, passing near the same stars year after year, with only a very gradual shifting of position with respect to the stars over the millennia. The shift in position observed from 4000 BC to 2000 AD for example, is only about a half degree. For more details on this, see the topic Normal Stars.


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