THE POLE AXIS DRIFT IS LIKE A TOP DOING A SPIRAL WOBBLE
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The reason the arrows are on the graph is so we can see the difference in wobble from year to year(the distance to no wobble in the center). As well as whether the timing on that same day each year forms a straight line to the center(rising and setting at the same place each year) or if the timing of them is ahead or behind each other
(rising and setting in a different place each year). The center that says zero axis wobble does not mean no tilt. The axis itself is tilted and produces the seasons, so even with no wobble we still have seasons. The drift really is the slight variations in the axis which is already tilted and wobbling. The Pole Axis Drift Is Updated Tuesday And Saturday |
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THE BOLD RED LINE IS THE EARTH ORIENTATION CENTER'S LATEST DRIFT PREDICTION