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Updated June 01, 2013
  Axis tilt of the Earth

Image: The axial tilt or obliquity is the angle between the axis of rotation of the Earth and its orbital plane, it remains confined between 21.8° and 24.4°. Currently, it is 23°26'14'' but the axis is recovering about 0.46" per year or ≈1 degree every 7800 years. Moreover, this axis oscillates around a cone, the full cycle (360°) lasts 25,765 years.

 
           
           
 
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