oceanking_uk_2003: milankovich_sm
oceanking_uk_2003: Orbital_variation
oceanking_uk_2003: Milankovitch_Variations
oceanking_uk_2003: Eccentricity_zero
oceanking_uk_2003: Eccentricity_half
oceanking_uk_2003: Earth_precession
oceanking_uk_2003: Earth_obliquity_range
oceanking_uk_2003: 800px-Vostok_420ky_4curves_insolation