# Can anyone explain the torque that causes the Earth's axial precession?

Looking around on the web, I frequently see explanations like "precession is caused by the action of the Sun's gravity on the Earth's equatorial bulge." That's nice, but I'm interested in a little more detail.

Can anyone give a somewhat more detailed explanation of where the Torque comes from? I'm looking for something like "at thus and such a time of year, you have more gravity here and less there; hence the torque acts in thus and such a way"