File:MilankovitchCyclesOrbitandCores.png

Past and future Milankovitch cycles.
 * Obliquity (axial tilt) (ε).
 * Eccentricity (e).
 * Longitude of perihelion (sin(ϖ)).
 * Precession index (e sin(ϖ)).
 * Calculated daily-averaged insolation at the top of the atmosphere, (Q (day)), on the day of the summer solstice at 65° N latitude.