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Graph of the tilt of the Earth's axis

This graph shows the variation in the tilt of the Earth's axis over the last 750,000 years. The blue line traces the tilt in degrees. The orange line shows today's value for comparison. The data are from Berger and Loutre (1991).
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ISM Home > Exhibits > Ice Ages>, Last modified August 30th 2007, 02:59PM.