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Physics, Astronomy & Cosmology / Distance of Earth from the Sun
« on: 26/06/2013 18:53:35 »
I was reading a nice article in Wiki about Milankovitch cycles (http://en.wikipedia.org/wiki/Milankovitch_cycles), and one question is still puzzling me: is the average distance of Earth from the Sun taken over 1 year period constant, or changing over time?
Thanks!
Thanks!